Harley-Davidson Stage 4 Milwaukee Eight Performance Upgrade │Details and Test Ride

[@jasonharden2732]

when it comes to the MOST THOROUGH review of a h-d your hands down the best ive seen. thank u for all the attention u give. your takin em to school in this game!

[@MattLaidlaw]

Jason Harden Thank you! Thanks for the good word. Enjoy the ride.

[@mike-gc4gz]

Matt you re video's were very helpful in my decision to buy a 2017 electra glide classic Itest rode road glide ultra and a limited the twin cooled bikes made a funny noise in the timing chain area maybe it was the water pump.Ialso did not like the fact that H-D did not put an oil cooler on twin cooled bikes.I am more concerned with a cool crank case not my legs being cooler.Besides I cant get any cooler.

[@anthonyellis2515]

I got the kit on my 2018 Road King. I had heard numerous bad things about this kit, but I love it. I did make sure to get it done before my 60 day grace period so it would fall under my warranty. Passing power is great. I also put the screaming eagle header, autotuner, and rims on it. It is a beast for sure. I was worried more about slow speed riding with this kit, but its all good too! Thanks Matt for all of the videos!!

[@bloosorangebox7497]

Anthony Ellis hey man!I maybe upgrading my 2016 110 Slim S to a 2017 Road King S that has the Stage IV kit. Was wondering...does your bike shake at idle more than stock RKs? Comparing to my bike, that was one thing I notice and was wondering is that common cuz of the Stage IV upgrades added on. Appreciate your feedback! Big decision to make lol

[@DeBa1226]

What’s most important to my riding style, is having passing power when two-up in the saddle, out on a road trip, off the freeways, riding 500 miles a day, crossing mountain passes along the way. I’m not drag racing from sport bar to sport bar. Most Harley Road King, Street Glide, Road Glides have plenty of power with a tweek to exhaust and cam upgrades. Above finding addition power and torque, I love the sound the 2016 Twin Cam can bring versus the quieter M8. Both a great performing motors.

[@Caseysays]

Bought the stage IV for my 2018 RK Standard this week. Install happens next week! Really looking forward to it!!

[@jroczx10]

How is it, I'm getting it next week, was it worth it

[@PeterDad60]

My 2015 Harley-Davidson FLHP Road King Police too me is exactly like you commented on this Stage 4 Milwaukee Eight upgrade, well except the 130-140 mph top end. I do 80 mph at 3,000 rpm with plenty more on tap. I'm 67 now and have nothing to prove by speeding. I did that in my younger years. We called it cafe racing and riding my then new Triumph T140V Bonneville 750 and winning every road race for 10 consecutive years. I still have that Triumph but I do not ride her because she will never , ever, allow any motorcycle to put a wheel ahead of her! My FLHP is so comfortable and handles as well as my Triumph with the caveat that she is not 365 lbs but over 825 lbs. So no, she can't match the Triumph move for move but she is just as fast and has a higher top speed. Also my FLHP has one finger front brakes. I always ride with the other finger wrapped securely around the hand grip for better control under all conditions. You can't be bounced out of the saddle if you ride that way! Because your hand will never be pulled off the grip. That's a real safety tip. Again, one finger breaking and I am not even as strong as a husky 12 year old at this time of my life. Ha, the clutch pull is easy as well. You need to try my old Triumph's clutch. Men were men in those day's and I guarantee that after only 15 min. riding my Triumph for the first time you would come home and your left arm and wrist will be so tight it will be locked up for day's. Of course since I rode her every day for a decade even in the snow I did not notice that at all. Only once when I did not ride her for a few years and when I started riding again and then compared her to my new 1994 Harley-Davidson 883 Sportster Deluxe did I realize how hard the clutch pull is on my Triumph. As far as a speed wobble, no way does my 2015 FLHP have in her genetic make up anything that could lead to a speed wobble. I trust her completely with my life. If a modern Harley-Davidson wobbles it's all because the rider provided the wrong input and caused the wobble. Heck if you wanted to you could make any motorcycle on earth get into a speed wobble once you know what you are doing. Accordingly once you know, really know how to ride your new Harley-Davidson will never wobble. I guess that riding skill is the last thing that separates the men from the boy's. Everyone, I hope you have a wonderful riding season on your Harley-Davidson's, as they are they highest quality Motorycle's in the WORLD and if you wash them and clean them befor every ride they will look show room new for over 20 years. You have to see how poorly my 1976 (41 year old) Triumph has aged compared to my almost show room new looking (23 year old) Harley-Davidson 883 Sportster.

[@robertcannon11]

Colorado born and raised but I don’t just ride in seventy five degree weather. In Colorado I ride 365 days a year rain snow 30 degrees out but to end this my stage four kit will be installed starting the 28 of June can’t wait to rip the highway because I going to see what this has lots of open roads around here and going to get my money out of this softail breakout keep making those videos that what sold me on the stage four and the fact Harley sticks behind the motor for 2 years

[@davidhern5350]

i LOVE that the rpm gauge is just chillen Matt! it sat so clean when you were pulling ever so gently! Still a savage beast!

[@shenandoahhills7263]

Ok Matt, the stage 4 is nice, but why can't one order the upgrade straight from the factory. As it is now one has to pay for the original parts, which go into the dust bin, then pay the labor to have them removed, purchase the new kit, again pay the labor to have them installed. and dyno-tune the bike. The bike has to be field stripped, and rebuilt by local technicians with various backgrounds and experience levels so that quality assurance may suffer. The labor at the factory to install the upgraded parts should be about the same as the standard issue. Not having to pay for the additional labor and original parts should save a chunk of change. This should also decrease their exposure to warranty issues. Frankly, an engine of this size should come stock from the factory with the power and torque of the stage 4, so why detune the bike? One can order an automobile with the desired engine option. Harley needs to wake up on this issue as it has been a thorn in riders sides for many years.

[@cofoi]

Shenandoah: True, it would be nice and customer friendly to be able to purchase the 117ci from factory, but not being able too is by specific marketing design from HD. It's the same reason they put those rock hard grips on as stock and too many other items to mention. It's all about the after market sales. HD is already having to rethink revenue stream in the maintenance dept, and thus for the whole store, due to the better quality expected from the new 107! Less top end jobs and so forth and on and on....So, the after market is probably where they will try and make that up. To me, that means more, less comfortable and or practical odds and ends on a stock bike, so you are inclined to purchase the upgrades!!! I'm a proud Harley Owner and on my 4th bike, most recent being a 2017 Road glide Ultra. I traded my 2013 FLHX. I had so much Burst collection (everything they had) on my bike including LED's throughout, and lower fairings with speakers. When it was time to consider trade, they appraise your bike as a stock bike. That's just the way it is. Determined to not make that same mistake with the 2017, I've already felt like I had to get the Tour Pack detach kit ($569) and replace those extremely uncomfortable hand grips ($109) and only had the bike for two weeks. So, no I don't think marketing will change what is working very well for them, until we stop buying all the after market shit. LOL.

[@shenandoahhills7263]

Cofoi, The question was addressed to Matt but it seems he only responds to what he perceives as positive comments. You are probably correct in that this is part of a marketing strategy, however, in the early years Harley was just trying to catch up with the "after market". This borders on the unethical when you build a product which is not your best, but can be markedly improved if you just buy these additional items. I can understand the personalized and bling items being extras, but not the engine and drive train, they should be an option from the factory. I have been told that Harley sells the upgrades as a dealer upgrade, because they are circumventing some of the Federal Government's certification rules, but I have no way of validating this. They were recently fined by the EPA for selling and installing non certified off-road parts for street use, so I am not sure how or if they sell the "Stages" without EPA approval.

[@Emagg7]

Shenandoah Hills I might be wrong but I thought harley does that and give the bike a CVO designation. Again I could be wrong.

[@madfzr]

I remember matt addressing this on one of his videos. Has to do with HD global compliance , emissions. Etc. I feel it though. I wish new HD would come out of the box with full exhaust

[@davidson2004fatboy]

Shenandoah Hills Cofoi, The question was addressed to Matt but it seems he only responds to what he perceives as positive comments. Matt SHOULD RESPOND to ALL PEOPLES COMMENTS and CONCERNS ! NOT JUST the COMMENTS HE FEELS LIKE RESPONDING TO. This is FUCKING BULLSHIT

[@gcollinssr]

Just bought a 2017 Ultra Limited yesterday at Deluxe HD in Gillette Wy. Ordered the stage 4 kit, D & D Cat pipe. HD heavy breather. Should be riding it next week and will post a video. I also have a 2015 CVO streetglide with the 117 upgrade awesome power.

[@MattLaidlaw]

gary Last very nice man. Congrats. Enjoy.

[@ka-bar5060]

This video just pumps me up for what I can do to my new '17 Road King with this engine. Great video. Thanks Matt!

[@charlesdickens8599]

A great bike for our wide open Wyoming roads. I am 300lbs of muscle, the torque increase is what I am interested in; not bogging or hesitating going up the high pitch inclines (hills). If I ever have that much disposable income to spend on more power in my bike... maybe. Until then, I'll pack light and rely on the fact that my wife is a skinny little thing who doesn't add much weight. Thanks again for another great vid.

[@richiesak3939]

OMG. I had no intention of commenting on this video but the stuff people post make it impossible. I honestly don't know how Matt keeps doing videos knowing he's going to have to listen to what some people post. First of all somebody's complaining about the image of bikers and ,oh my God, riding on the sidewalk. Give me a break. He wasn't going fast or yelling at them to move. I don't see anything wrong with what he did and who gives a shit what some people think about bikers. Then there's those people concerned about miles per gallon. Do you really have to ask if it affects it? You're going to a bigger bore and increasing the size of the injectors what do you think? Is it going to turn into a Dodge Ram pickup truck and get 11 miles per gallon? No. Is it going to get the same 41? No. If you're so concerned with miles per gallon go get a scooter they get 80 to 100 and I can guarantee you that if u are someone focusing on miles per gallon this kit is not for you. Finally, the usual comment someone always has to make. Why do I have to pay for this, the bike is so expensive it should come with it. God I hate that one. The reason it doesn't come with it is because high-horsepower is not what everybody wants. To some, torque is more important. It all depends on how you ride. Who cares that it's a Touring bike, that has nothing to do with it? What does that mean, you shouldn't be able to get an increase in Horsepower over stock? I have a 2016 Road Glide Special, a touring bike. I never ride 2 up. I'm on the highway a lot and sometimes I like to ride aggressively. That does not apply to everyone. So they build the bike in such a way that it can appeal to many people and then each individual can customize it to their liking. All Matt's doing here is showing you one option. It's a horsepower kit. If that's not what you're looking for, don't buy it. Some people will like it. Just because it doesn't fit how you ride, doesn't mean it's not what someone else would want.

[@Steelviper61]

Very well said, you saved me from having to do this! Chest Pump.

[@lazzyrj1]

Damn right. Why it even has to be said is the part I don't understand.

[@davidson2004fatboy]

@@Steelviper61 FUCK OFF ASS-KISSER

[@davidson2004fatboy]

@Joseph Marton FUCK OFF ASS-KISSER

[@davidson2004fatboy]

Richie sak NEVER SEEN so MANY FUCKING ASS-KISSERS on a SITE IN MY ENTIRE LIFE ! WHY DON'T YOU FUCKERS BEND OVER SO Matt CAN FUCK YOU GUYS IN THE ASS. Then SAY Matt, CAN I HAVE ANOTHER

[@karlc8359]

Riding on the roads in the county, my old evo goes as fast as I need. She never breaks down either.

[@MrBluoct]

Karl C 🤘

[@naterockwell7735]

127 cid Evo! All the power I need!! 🤙

[@thepsychedelicdieselwagon9599]

Great job Karl. Tomorrow you will graduate to finger painting.

[@dennism103]

I almost bought a triumph thunderbird but the dealers are rare, and have several other brands to, i bought a road king, because there is a dealership 12 miles from me and about 6 dealerships within a hour or two, and they only specialize in hd, and they are fully staffed with very competent professional ppl, who are passionate about the brand, u gotta buy one to understand...

[@farclebaba]

Awesome Matt. Cool video and answers a couple of questions I had about the Stage 4 for the M8. Having the upgrade installed inside of 60 days and getting the warranty makes this attractive proposition for sure.

[@MattLaidlaw]

K Porter glad I could help.

[@Steelviper61]

Awesome videos as always Matt! Test rode the 107 and 114 yesterday on 3 different softails and man!, you are right the stock torque is mind blowing already! Great job and good advice about doing the mod within the first 60 days of new ownership. Please keep up the good work and ignore the haters and naysayers they just don't understand brother. Peace.

[@MattLaidlaw]

+Joseph Smith thanks brother. I appreciate the positivity.

[@mickeyroberts77777]

Matt, keep up the great work! Your videos are very informative and that you are an experienced rider, gives me a real perspective with all of your reviews.

[@Wontonsoup305]

Harley-Davidson riders always have the best gear

[@sokodad]

Been hearing from many engine builders you can install stage 3 and have them CNC port your heads put screaming eagle injectors in with a power vision tune with D&D 2-1 and make better power.

[@jasonhodge696]

Matt. Awesome!!!!!!!!! I did the same to my Street Glide, but did the 117 with Vance and Hines power duals with Rhinehart high flow baffle exhaust. New flywheel. Removed as much weight as possible. I just completed the break in on a restrictive map. Its going on the dino this week with a new race map. All I can say it the bike is a fucking beast!!!!!!!!!!! I rule the road and choose where I want to be. Putting a chain drive on as well. Will be drag racing my bagger this summer at Rocky Mountain Raceway in Salt Lake City this summer. Will keep you posted on my times!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[@MattLaidlaw]

Jason Hodge awesome! Yes, keep me posted !

[@jameswilson9385]

You may rule the road in the Harley world but in the world of Truimph Rocket's you would be sadly disappointed in a race.

[@jasonhodge696]

I am also a very good looking man

[@mrh3085]

james wilson. First of all there is always someone faster. Second, the rider has a lot to do with how fast you corner, accelerate and stop. Harley's aren't for everyone and if you want to ride a Triumph you a free to do so. Ride safe.

[@flyingdog1498]

Harleys bring up the rear, like the street cleaners after the horses in the parade.

[@mrvoyagerm]

I am a Harley guy through and through but ...... back in 2004 Kawasaki came out with a 2053cc Vulcan - 125 cu.in. 116 Hp, 141 ft lbs of torque. This bike seemed a bit larger than a Harley and really stretched your arms leaving you with a grin from ear to ear. I saw one last summer for sale at $6500 CDN. It would never replace my Harley but it is a blast to ride - If you have the nerve:)

[@fililoboesparza5784]

Awesome screaming eagle upgrade 👍🏻 Sounds very nice when you got on it Matt. But I know what you mean by public roads and other people property.. Thanks for Video..

[@lmtar15lt]

Good video Matt. The question I would like to ask I have a 2018 Fat Bob 114 motor and I'm getting the stage 4 Kit what will this do for the drivability of the bike. I will mainly be on the highway as I have 47 miles to get to work but I do like to drive it inside the neighborhood will bike suffer performance-wise doing this type of driving or is it mainly made for the highway use. Thanks luis

[@speedpig513]

I'm Bryan's buddy! He's been telling me all about this!!! Hopefully I could get approved!!

[@greasylou886]

Great video. I liked the riding on the public sidewalk part!😃 Sold!

[@cavscout62]

The Stage 4 kit with the Stage 3 Cam is the way to go as it makes mountains of torque in a lower rpm range. Also substituting an S&S or Fueling Cam Plate and Lifters will ensure engine longevity although you will lose the Factory warranty.

[@borissmotoadventures5150]

Matt, you forgot to mention that the stage 4 kit or any kit requires a fuel map from HD designed for the increased displacement.

[@whiskeythrottleracing]

The exhaust not alone is worth the price of admission. Any idea how the MPG is affected by the kit?

[@break-a-way7685]

Run your new stock ride till it needs a rebuild or at least till your outta warranty. Then do this build with a kit from Fuel Moto, or S&S. As much as I love horse power, me ,personally, I have a hard time tearing into something new.

[@chadernest1471]

Love the blacked out bike. Looks like it was a fun ride!

[@freightshayker]

See how you ease next to a lot of cars before you pass to check they won't make surprise lane change. And like the comparison to others on sport bike then you being in a recliner. Any thoughts on fairings or windshields ... or is street glide or is road glide fairing size sort of a minimum for you on longer highway stretches ?

[@MarkR973]

I loved my road king classic and wish they still sold them in the states.. got my sights on a new ultra ...

[@tomphillips8565]

Matt, you explain things so well and inform your video viewers with the information they have been searching for. Keep these well informed videos coming. Thanks again.

[@MattLaidlaw]

Thanks man👍🏻 that’s exactly my goal. Glad you got some Info.

[@bradwilliams4921]

Great video. I have a question, which has more hp, a stock 114 or a 107 with a stage IV?

[@tomcatcv6214]

I don't see a new oil pump...... no sumping issues with this kit?

[@reginaldpowell510]

Great blog for the shop. I'd pay the extra , for either shop here in Tucson AZ to rebuild it for me. Good Mechanics and Techs. Or Bobby over in Yuma. I was waiting to see what a Stage IV turned out to be. I still haven't ridden any of the M8s. The TC Engine runs hot out here.

[@groverkaduku9945]

WOW!!!! Finally catching up to my old stock VTX 1800 I paid cash for less than eight grand. Maybe a few more versions, Harley bazzillion cost bikes might catch up to me. See you in my rear view.

[@darrellbeauchamp1065]

I'll wave at you when I'm passing Aldi's

[@Neocleese]

Brilliant!! I felt like I was on that Glide going down the highway. Incredible!. I may have to look into that kit when I get my Road King Special. Thanks again Matt. Great vlogs man keep them coming.

[@MattLaidlaw]

Clint Young thanks man

[@gunterm2009]

nice bikes really liked the all blacked out one.

[@Locrum]

My 2009 Low Rider has a crazy speed wobble around 80, and I've had the tire balanced, then lower bearings replaced, then tire replaced. neck was checked etc. Definitely looking to upgrade this fall to an M8 touring bike.

[@MattLaidlaw]

Wierd, did you do custom wheels or bars?

[@Locrum]

Actually, yes. I've got 16" Roland Sands King Apes on there. I tightened up the risers a bit, and it was better but still there at higher speeds. The problem these days, is after 20 years my wife is finally wanting to ride with me so a little more in the suspension department would be good, and I'd like a fairing and some cargo room. (I never could find bags that fit the low rider well, that I liked the looks of).

[@road_king_dude]

AWESOME VID MATT!! I'm droolin. But how do u riders cope with the terrible LA traffic down there?? I have some friends there that say it's pretty awful & getting worse. Add to that I saw a news report recently that stated that LA had the worst traffic in the country. So how do u guys cope, especially on a bagger???

[@oldsoldier8139]

Sounds Beautiful...I want one....

[@kennethwise7108]

Matt, why did the MOCO do away with the Stage V? I could've sworn that when the M8 was launched there was a Stage V option? I could be wrong about that...

[@FLSTCmerlin]

Is it possible to upgrade a 2017 Ultra trike with this 128 motor? I have a bum leg and I'm old, or I'd still be on two.

[@morrisdennis]

My m8 stage 2 is badass, once its done then maybe. I wanna see how long it will last I'm guessing 200k.

[@Phil_Scott]

Nice! and thats from an old flat tracker, limey bikes and rice burners.

[@joefrias]

I have a 2020 Slim, at Stage 2, considering in a year or so going up to Stage 4, I have the extended service Screaming Eagle. Living out in West Texas I can open it up a bit and fully appreciate going up to Stage 2 and eventually to 4. Though I am thinking going from 107 to 114 or 128.

[@MattLaidlaw]

Go for it man. 👍🏼

[@smplloyd]

Great videos, very informative. One question, can a HD transmission have a slipper clutch put on?

[@brattpark790]

Hey sir, do you think they can do 107 to 117? Or 128? Not to just 114...

[@donnacrawford1024]

Can i keep the stock exhaust if i wanted with the stage 4. I like the quite pipes

[@allemem1]

I love Harley. I'm on my 2nd Vrod now (2016 Muscle). With that being said, good God...the prices. Pay ~$25k for a new SG, then add another ~$5k for the Stage 3 kit (including labor) to obtain ~110rwhp. I just installed a Stage 1 on my Vrod a few weeks back. It took me about 1.5 hours. The bike put down 119rwhp. Between the bike and the parts, I'm at $18k. Anyways, those are some sweet bikes!

[@fastsofaracing]

119 that's it? laughable. HD can't get out of their own way. sorry ass bikes.

[@andrewdreyer7765]

What will this be like compared to the 103, Matt? Practically speaking, are you able to spin the tiers just by taking off? Is it too overwhelming? I'm considering this when they move it the Dyna in the coming years. Thanks!

[@michaelrauch495]

that upgrade wouldn't be available for any of the Fatboy models would it?

[@RoadKing05FLHR]

Nice review. As for the street riding it's impossible to tell anything. I'm sure you could feel it though.

[@leepeterke3971]

2018 streetglide 107.... added hd 114 big bore, se heads, se throttle body, injectors, thundermax, ventilator with bigger air cleaner, krome works 2-1, 145hp, 140tq

[@edkelly2077]

Hey.. Great Job for sure... Just curious what A stage IV does to a 117 engine? What’s changed from 117 ci

[@mychan3734]

Excellent video and review like always Matt....👍🏽👍🏽 can't wait to put this on a 17 road king.

[@themanthelegend7048]

Hard to justify this. You need stage 1 -3 also right?

[@brucegruenbaum]

Hey Matt, Great review. I bought a 2017 Road Glide Ultra in June and I'm trying to make up my mind between doing the Stage 3 and Stage 4 upgrades. What's your perspective?

[@simmon81au]

Can you buy this kit but use the torque cam from the stage 3 kit? I want the power before 3k rpm

[@PhatboyHD88]

Hey Matt so we at the dealership I'm from are finally doing a 107 to 114 kit... and found out about the new oil pump feed gear and return gear you must change with the kit because of the issue that you run into ... have you ran into that yet ? Not going to go into specifics here ,, for obvious reasons just curious if you dealt with this yet ...send me a pm or email I can reach you at ... we can talk more about this .. like I said first one done here .. I'm not actually doing it my buddy is .. but there was some stuff you might find interesting.. ok buddy and thanks for the video!!!

[@thebeardedyorkshireman8368]

Hi Matt what do you think the the fan assisted oil cooler? Does it help performance?

[@edwinstorz702]

Thanks for showing, i sure didn't like the Milwaukee 8 when i seen and herd my first, because of this Video the new Harley is growing on me really fast. Again, Thank you!!!

[@ppa4998]

How would you compare this to s&s products

[@duketullis]

Great video. I rode a 17 SG. The ergonomics are good, but not enough for me to change from my Heritage. Heritage is the only HD I've ridden that I call perfect ergonomics. I sold a EG Classic Ultra and bought the Heritage. Huge improvement in rider seating position. I'll be getting a new M8 Heritage Stage 4 later this year. I'm sure you've sat on a Heritage before. I'd like to hear what you think about the seating position after you refresh your memory. Thanks for the video.

[@joshuaholmes7929]

Last I checked the Milwaukee 8 wasn't in anything but the touring bikes yet so how are you getting a heritage with it?

[@kevingoodwinentllc4811]

When getting a Harley 2018 .114 mil 8 can you work the price of stage 4 in with the Total price at the end

[@markhyronemus5320]

I have been trolling videos with dyno results on all the upgrades, and to me it appears the 107 to 114 upgrade is a waste unless you go with the CNC heads. Stage 2 torque cam with labor is about $900.00, gives you 98 HP, and 107 F lb torque. Stage 3 is $1600.00 just for the kit, no clue but guess at least $1000.00 labor, for 100.9HP, and 107.56 F lb torque. Stage 4 to 117 is $2600.00 just for the kit, not sure if you can even get there starting with a 107, but on the dyno that takes you to 112HP, and 118Flb torque. Looks to me like stage 2 should be plenty of bang for the buck without breaking the bank, any more than that your probably just making up for something your lacking somewhere else.

[@AUREL_ENHARDI]

Hi, i ve found a 2017' Street glide cvo 114 with stage 4 (SE). Is it reliable? Thanks 👍🏻

[@norcal8946]

Just brought home my new (20 mi) 18 RGS (blacked out) w/ the 114. Comin off my traded 16 FXDLS w/ the 110. It will be interesting to see any noticeable power difference keeping in mind the weight difference between the 2 rides. Thanks for the vid👌

[@bikerseychelles]

So cool just ordered one for my Softail slim S will see......

[@djtruckinstevewilkinson1377]

Matt, great video! I have the 2014 CVO limited with the 110 upgraded to the 117 kit. How do you compare this engine to the milwaukee 8 stage 4 kit in this video?

[@wooddawg4868]

Very few people if any need a upgrade to a M8 engine/motor. If you have extra money laying around do it. Before my 2017 street glide I had a road king with a 96ci twin cam with gear cams. That 96ci was a good motor and put 79k miles on it with no motor work other than the gear cam kit and still sold the bike. You don’t need a big ass motor to get it in and have fun.

[@johnkelly1806]

Hey do you guys customize bikes

[@joseytuarte5149]

What would be the top speed on a 2018 breakout 114 if I add a stage 4 pro race kit

[@billybronco.9123]

HD get you every step off the way,will never change $$$$$

[@DixieWhiskey]

Another great video Matt, keep it up.

[@aytes44]

I bought a 2017 Road King and contemplated the upgrade while it was under warranty, but decided it had enough power for me. Now I keep thinking about it and was wondering what the upgrade would do to the life of the engine. Do you think the upgrade will cause the motor to wear out faster, or do you think it's not a significant difference.

[@MattLaidlaw]

+aytes44 a lot of that question comes down to how you ride it. I think people who do engine work want to squeeze everything out of their engine and ride it harder. The HD Kits are very good (reliable) kits. I do however think the stock engine untouched will be a little more reliable in the long term. The HD kits are a heck of a lot more reliable then taking it to the local “speed shop”.

[@cydonianman]

still have the tc88 5speed. everytime I get on the interstate I look for a 6th gear. just can't afford another harley or a trans upgrade.

[@MrBobbynips]

Hey guys. Love your videos. Very informative. I know where you get your music for your video but, WHATS THE TRACK????? Love it. Need to know. Please.

[@CUInMySights]

Great build! Approximately how much of a labor charge for Laidlaw's to install this kit? Keep them coming.

[@MattLaidlaw]

CUInMySights it's around 5k with labor etc

[@PWNDNOMAD]

I see they offer a 117 cu in for the CVO Street Glide, but if you do the 114 cu in conversion on a Street Glide Special, can you do the 117 after or are you stuck with just the 114 option ?

[@hanksouthworth9755]

These bike are so expensive they should come stock with most of this shit

[@mopar21]

Amen

[@JDB5824RG]

Hey Matt - I just had the stage 4 installed on my 2017 RGS and was advised by the dyno shop the 107 bikes with this 114 kit are having oil pump issues ? Have you seen any oil pump failures or should the oil pump be upgraded also when installing this kit. Thanks

[@MattLaidlaw]

James B we haven't seen a failure. If you experience a loss of power as you're going up the RPM range then you'll need to get this upgraded oil pump. It seems that this problem is not experienced by all people who have this kit. We haven't had one yet. But if you do experience a loss of power then the protocol is for the dealer to switch out the oil pump (free of additional charge). When you say Dyno shop, did you take it to a non-authorized shop to have the stage 4 kit Dyno'ed? I hope not. There is a setup download configuration for that kit. A memo was released by HD a few weeks ago. I'm pinning this comment so people with the same question will hopefully see this response.

[@JDB5824RG]

Matt. No I did not have my bike tuned was considering it at a reputable shop and they told me I should consider the oil pump upgrade. I have only herd of two bikes with this issue but you never know how the bike is being treated during the break in process that could have attributed to an issue. I appreciate you getting back to me. Hands down you have the best most informative videos for HD thank you for all you do ...

[@jhughes3385]

I have a 2017 CVO with a 117 stage kit. I have the oil pump issue. Got the updated pump and it didn't fix my problem.

[@jhughes3385]

Drained over a quart of oil from the bottom. Should only have about 5 ounces according to harley It's a sump issue

[@jhughes3385]

Dank Memes Bruh first off I don't need you calling names. 2nd not asking for your uneducated opinion about something you don't like or own. 3rd I didn't ask you what my bike was worth. I was asking Matt a question

[@regfeener]

Just wondering Matt is this kit with the heads, cam, and throttle body the same engine that's in the CVO 114..?

[@freedom6919741]

Reg Feener totally different cam and higher compression. So no it’s not the same.

[@Luisperez-lz6ym]

what is top speed of this bike with the 114 ?

[@wolfemanbog4176]

2017 ultra classic 1111 miles front rocker box oil leak can believe it not sure why so soon this is my second oil leak 275 miles rear rocker box oil leak !!! So I asked the dealership if they can check it's it's running to lean , I haven't changed anything on bike. I purchased the bike in August 1 2017 and also ordered they fan assisted oil cooler from Harley and having the dealership install this at the same time it's in the shop for this oil leaks hopeful this will help me out and be able to ride more with out oil leaks from California , Santa Clara area

[@thomasangelo4219]

thinking of doing these stage 4 upgrade on my 217 Street Glide and put in 14 inch handlebars what do you think of the hand of us stay with stocks appreciate your comment Matt thank you

[@MattLaidlaw]

Thomas Angelo I don't understand the question. Please restate it.

[@markbradley1727]

Matt is a good guy and I've bought a bike from him but if you own an M8 (I have a 2017 CVO stage 2, 2018 Fatbob stage 4 & 2019 CVO stage 3) these kits are a colossal waste of money. Stock oil pump design flaws, head bolt failures and plastic tappet guides et. al. will strand you beside the road days after the warranty expires and neither the dealer or H corporate will tell you about the problems. My 2019 CVO streetglide was $50k plus $7k for the dealer installed stage 3 kit which made 20 more HP. The $8k aftermarket 128ci kit installed on it now solves all the factory flaws and makes 60hp and 65lbs more torque than stock.

[@Bones114]

I love the way the Simpson helmet looks but I've heard so many negative reviews. Complaints about wind noise among others so it's kind of turned me away from it. What are your thoughts?

[@MattLaidlaw]

justnmegs I really like mine. There are helmets that have better wind cancellation but the wind noise isn't bad. The styling is extremely good. I don't think there is a better looking helmet out there. There isn't great ventilation. It's DOT AND SNELL approved which is nice. It's a good helmet. I like mine.

[@Bones114]

Very cool thanks for the info

[@anthonylessthanzero1498]

Keep the great videos coming! Thanks Matt!

[@Busyrider_HD]

Hi Matt! Thanks for vid! Want about consumption of petroleum with this kit?

[@MattLaidlaw]

You’d be surprised. The fuel economy isn’t much worse than stock. I don’t have exact numbers though. It varies significantly on how you ride it.

[@viewbid6340]

Its not about fast - Its about how quick is it to get to fast.

[@darrellbeauchamp1065]

What numbers did it pull

[@jamesw3937]

What about stage 4 with a torq cam?

[@bobhog3969]

I really wish I got my bike from you guys. I might stop by tomorrow just to ride somewhere about a hour away

[@dennism103]

Matt excellent video, hmm maybe I'll get the kit in a few yrs, looks cool, but the stock 107 is already amazingly powerful, ive recently bought Rinehart's slip on's, they sound so cool!

[@MattLaidlaw]

Thanks. Yea the 107 has good power out of the box. Good choice on mufflers. That’s what I have. I like them.

[@gatorwing6231]

Why not build the engine to it's fullest potential in the first place. What happens to the parts that get replaced? Sounds like Harley dealers want most of their profits to come from add-ons & shop maintenance work. SAD.

[@Andy-px1mj]

That’s how it works for every company. You can upgrade anything. It’s business mate.

[@justcallmejoeable]

Matt, I see the price of the kit but do you have a ballpark idea of how much I would be looking at for labor to get the kit installed by the dealer on a brand new bike?

[@MattLaidlaw]

With labor, tax, mufflers, air cleaner, and price of kit etc. you can expect to pay about $5,000 everything included.

[@runningbear8895]

Thanks Matt for the excellent videos - keep them coming!