BEST Exhaust For Your Harley-Davidson Milwaukee 8?

Is this the BEST exhaust for the Harley-Davidson Milwaukee 8 engine? In this episode, we install the HPi M8 Softail exhaust and put it to the test! Want to order one? Hit us up at www.BlockheadGarage.com and we'll get you sorted out!
❱❱ We GIVE AWAY Motorcycles @ www.BlockheadMoto.com
❱ Book Service @ www.BlockheadGarage.com
Checkout our Exhaust Comparison videos!
Part 01: • BEST Exhaust For Your ... (Thrashin / HPi)
Part 02: • BEST Exhaust For Your ... (Horsepower Inc)
Part 03: • BEST Exhaust For Your ... (Sawicki Speed)
❱ Join our Discord @ www.BlockheadMoto.com
❱ Become a Channel Member @ bit.ly/BHM-YT-Membership
Don't forget to Subscribe! ❱ www.bit.ly/BHM-Sub
Channel Sponsors!
❱ Ruroc: bit.ly/BHxRuroc
❱ RevZilla: bit.ly/BHM-RevZilla
❱ Law Tigers: bit.ly/BHMxLawTigers
❱ Dynojet: amzn.to/3sZSN8l
❱ Rokform: bit.ly/BHMxRokform
Thanks for tuning in! Ride safe, stay vigilant!
▬▬▬▬
❱ GEAR I USE:
Helmet | Ruroc: bit.ly/BHxRuroc
How We Talk to Each Other | Sena: amzn.to/3weBVbH
My Gloves: bit.ly/BHM-RevItGloves
Phone Mount | Rokform (Discount: BlockheadMoto25): bit.ly/BHMxRokform
❱ LINKS:
Instagram - / blockheadmoto
Facebook - / blockheadmoto
Merch - bit.ly/Shophead
❱ BIKES:
2013 Harley-Davidson Iron 883 (The OG)
2020 Harley-Davidson Low Rider S 131 (Goldzilla)
2021 Yamaha MT-09 SP
2010 Honda CBR600RR
2018 Honda Grom x2
2017 Harley-Davidson Dyna Low Rider S (Blue Hellephant)
2021 Harley-Davidson Sportster S
❱ CURRENT GIVEAWAY: Season 08 (Enter @ www.BlockheadMoto.com)
2022 Harley-Davidson Low Rider ST
❱ VEHICLES:
1978 Pontiac Firebird Trans Am 6.6L V8
2013 Ford Raptor 6.2L V8 (Gen 1)
1994 BMW E36 Coupe (328 IS)
▬▬▬▬
❱ MAIL:
Blockhead Moto, PO Box 771077, Winter Garden, FL 34787

[@jerryspencer5453]

Anybody that likes to do their own work has to love you guys. Great information for all of us. Appreciate the work you do to help keep us informed.

[@fps636]

These "tech" vids are the best. Sick's explanations and experience deserve to be continuously HEARD. Great garage Block, enjoy being here.

[@MrLuna-ip5fk]

I love the way you work. You are experts on doing what you are doing. But mostly I love the way you get along with each other. Keep up the great work, performance, friends and great vives at work. You all guys are pros.

[@zaytona407]

Súper dope exhaust. Can’t wait to work with you guys really soon. Great groups of guys with a lot of experience.

[@stevewilliams3883]

Thanks for all the hard work you have done to show the difference in each pipe. Mine is on order with you and waiting on delivery for my 24 Low Rider ST

[@victorenriquez1285]

Great work guys keep the great science “content” rolling. Looking forward to the d&d exhaust

[@toomey2wheels247]

I freaking love these videos man. Blockhead you got the best channel on youtube!!!

[@deonnawilliams8965]

Hell Yea BlockHead & Chris really enjoyed this video. Extremely well put together. I mean when you first cranked the HP exhaust, 😍Nasty. BlockHead if you have a moment how well do you think the Vance & Hines Hi-Oput RR numbers could be ? Or is it to many variables to tell?

[@fatbobchronicles6125]

Exactly the content I’m looking for. Would be nice to see a fab28 thrown into the mix for good measure 🙌

[@rocketraccoon4028]

Super sick!! Love that exhaust!!

[@GawgaCracka]

Like Chris said numbers are fun to talk about, but if the usable power comes in low and climbs steady, it feels faster even if your giving up a few HP, and feeling power throughout the gears is tits compared to a 3500 4500rpm high hp number, it must be the 42 years of experience...D&D makes some nice exhaust also.

[@mattjohnson1511]

would be curious about the Trask and Fab28 pipes as well, great vid!!!

[@ValOzuna]

Dude I would love this bike in my garage. I bought a 2020 fatboy with the M8 but I shoukdve bought the lowrider st. Absolutely love this bike. Thanks for the video!!

[@austinap2248]

Iv'e got the mid length stainless steel 2 in one Bassani on my 2020 SGS and it's awesome.

[@DoctorMotorcycle]

Interesting test; my gut instinct says that the main difference in power was the Thrashin system being held back by the dogball resonator. It's my understanding that the resonator gets rid of the classic empty pipe "rooga rooga/hub blub blub" sound upon deceleration that your new setup now has. 🤜

[@GenSparks]

Beautiful pipes thanks for the info.

[@keithcolson]

That exhaust looks and sounds sweet!

[@itsjayrcuh]

Shop lookin good man. I hope I can visit next spring 🤙🏻

[@markmcintosh7095]

Another great video thanks guy's.

[@Yargilfist]

Sheeeeesh, that sounds *GOOD!* Both sound awesome, and stoked to see more from Horsepower in the episodes. Looking forward to the giveaway of this bike! Fingers crossed that I get lucky 😆

[@Project_Bronze_114]

If it's not for science, is it even worth doing? I look forward to future science videos! Great vid, keep up the great work; it's thanks to your channel that i've settled on picking up a Harley for my next bike, and these science videos have really helped educate me on the best parts to look at.

[@curtislink]

Really like the exhaust pipe shootout HPi awesome looking and performing pipes !!!!

[@BillTheHarleyGuy]

awesome video as always , your science research is pretty cool even though it gives you guys a reason to FK off afterwards it's a blessing 👍

[@clif_stu]

Sick exhaust! I'd say keep it on the bike

[@ChaseJasperDown]

I much prefer the black exhaust look on that bike. I still loved the video and thanks for sharing!

[@N6J6R6]

Great video. Do you recommend this pipe above all the alternatives out there for performance?? Do they require a spacer for the right side controls?

[@manny2718]

Thanks for the great video. I'm buying an ST soon, so I'm trying to decide on the right pipe. Did you measure the HP/torque on the stock bike? How do the HPi/Thrasher numbers compare to stock?

[@yescavol1637]

Very nice piece of equipment. Looks great, sounds great, creates some extra HP at a premium price. I like that. As far as the O2 sensor goes, can’t the shop install a bung at the desired location and simply leave the poorly placed one plugged?

[@bowlingmatt1]

What about a thunderheader? I love the sound and performance on my old evo.

[@PhillipsHogBuilds.]

I'm in California and I'm amazed at how far the grumble is with this pipe it pumps louder than I thought it would be allowed to

[@Blynd_HD]

Can't wait to see the D&D video, just hoping it's of their bobcat 2 into 1

[@chgofirefighter]

This fucking motorcycle shop is god damn AMAZING! They did an amazing job on my 2023 HD ST. Wow, she's a beast! Love her and Chris is one solid dude!

[@jarrellllewellyn9199]

Love to see you do a bassani road rage 3 aswell 👌

[@BushRat253]

That HPI sounds siiiiiiiick.

[@williamb.9110]

I'm looking forward to the D&D pulls. I'm also interested in the Sawicki. Thanks boyz!

[@markclay4598]

That's 2 for the Sawicki!

[@soganoflarider]

@@markclay4598 I’ve got the Sawiki shorty on my bike and it’s freaking awesome! Side note: my bike isn’t a Harley nor an import. I’ve got a couple videos of it on my channel so far

[@johnphelps9290]

I thought that was shade tree there for a moment when you turned the camera I wasn't ready 🤣

[@courier77]

That sounds perfect

[@vaporcaper9601]

I’ve got the cobra 2-1 sounds pretty good and the added horses is noticeable

[@sammyvices2547]

I just put a Vance&Hines upsweep on my 2022 Fxlrs. Have you guys ever had a build with the upsweep? Do they make power? It’s not a high dollar piece but it seems too be very quality. I love the sound it stands alone compared to what everyone else is throwing on there lowriders

[@stephennaccari7673]

Nice looking Harley Davidson I love it

[@shane8493]

I’m actually anxious to see the D&D pipe numbers. I so appreciate the science research your doing 😁.

[@markmcintosh7095]

I'll second that they are great.

[@johnmacias01]

IMO, DND does some great pipes for half the cost of HPI‼️🤣

[@pauloyster2462]

Would absolutely love to see a D&D fat cat and the new super bike pipe from Bassani!

[@CactusJack252]

I would like to see a fab28 pipe as well.

[@webbsteroni]

Same. I’m interested in seeing the numbers on the Ft. Worth, TX based D&D as well.

[@jakeb.1318]

Love the Thrashin pipe but the HPI does look damn good on the ST

[@michaelmitchell5909]

Black thrashing pipe looks way sick too man, stainless is getting worn out.....everyone is using them

[@delilahzx10r47]

How do the other 2 into 1s compare to the tbr turn out? I really like the tbr you got on yours.

[@jeffnorman1598]

That Harley Davidson Low Rider ST is awesome , BADASS looking bike.

[@user-ov3lr6tk7z]

Riding, motor cycle life~ 🌞 If you raise your hand, 👋, it's even more nice to meet you. It's safer. It's more honest. Always be happy with you.👏👏

[@J_BLAZE415]

Do you guys have any comparisons or dyno tunes with a thunderheader exhaust on the M8's.

[@tracyjohnson7017]

What do you think of adding torque cones?

[@jargramirez888]

Could you do an exhaust shootout on the SP Concepts big bore exhaust as well?

[@JohnLee-sw9nd]

That pipe sounds and performs like premium. Is the TAB slip on muffler bang for the buck? any ideas would be helpful.

[@williamferril3274]

On a 2020 Heritage with a 468 cam I've gotten good results with Rinehart 2,-1 110/125

[@slayer04031974]

Cam and exhaust shoot out!! Please for Science!! I would love to know what Woods cam 22xe vs 22xd does?!! Love the HPI sounds a lot better

[@JorgeL1]

I knew it! Wonder if the differentiator in numbers is the baffles?

[@fatbobchronicles6125]

Patiently awaiting the follow up

[@ConcenTREted_Strength]

It’s crazy to see the color of the pipe change that fast. @12:40

[@bobfrederick475]

Hey Blockhead. I have a question for your tech. I’m looking into the screaming eagle stage 4 upgrade for my 2020 street glide standard. It’s the 107 going to a 128. My question is how big of a cam can this kit handle cause it looks like the cam the kit comes with leaves a lot on the table.

[@manny1470]

The only problem I see with HPI is the lead time. They're like 16-20 weeks out. I think they are the best but damn 16-20 week wait and +$300 for 3 or 4 horsepower? Is it worth it? Your call.

[@crawler3722]

I've been thinking about getting on the waiting(drooling) list to order an HPi pipe for my Lowrider ST. But, because the wait was so long, I jumped on a smoking deal for a new Bassani 2into1 (Blem) pipe. I'd be interested in seeing the numbers for it(Bassani), in comparison to the D&D (and HPi/Thrashin). The Bassani is pretty popular pipe and I think you should include it in the shootout.

[@hybridEP3]

Thrashin pipes are made by bassani

[@alexanderschmidt7710]

Dunno if you’re aware. But Thrashin have a tailpipe without the dog balls. If this comparison should have made any sense you should have compared similar baffles. Actually it’s amazing how close the dog balls Thrashin version is to the HP one. Anyways. Love your shit! Keep at it 🤙🏼

[@hackrockstar]

Honestly. I did buy the heck out of the motorcycle things shirt. On site… literally on sight

[@normannoakes4698]

Great content as usual, but ill stick to my bassarni stage three!!!! just saying..:)

[@James06995]

Can y’all do a review of the Triumph Bonneville Bobbers. Recently discovered Thornton Hundred and their amazing work on those classic bikes. Curious what y’all’s opinions of them are.

[@jonpayne2009]

Can you guys please do some twin cam stuff ? I exhaust shoot out / cams etc … I want the Block Head opinion and not all of us can afford a new bike ! Thanks Fellas

[@toomey2wheels247]

I would like to see Tab performance Zombie Slipons on the dyno. Im curious how much better the $1800 pipe is

[@scoobymoto9858]

Definitely like the look of the HPi pipe on the bike better then the thrashin.

[@donaldruggiero5326]

Happy Thanksgiving guys

[@cpd1213]

How warm does that HPI exhaust get without heat shields? I have the Fuel Moto stainless without heat shields and gets quite hot! Wondering if it even makes a difference at all. Thanks.

[@MightyMouzMoto]

Nice!

[@shanemuir7108]

Is there a plan in the future to do the S&S Superstreet? I would love to see how it compares to the rest with a proper tune.

[@drainmonkeys385]

I’m thinking about the woods 22xe cam for mine .. haven’t decided yet on exhaust

[@jsgiroux]

I am late on this one but the bassani super bike pipe would be fun to see as well

[@marvelharris9540]

Did you compare the stock headers with a decent slip on as well... i've read the torque numbers might be similar to a 2 into 1

[@azilla04]

Could you guys test a sawicki on the ST?

[@MichaelBertini]

I had a slight feeling about this outcome, but it’s good to be validated. Personally, I think the D&D is going to beat all of them, but I’m not a fan of the looks. 🤷🏽‍♂️

[@danielrhew2772]

Good to see your face bro

[@freetimedaze]

Thunderheader over all!

[@robertaranda7371]

You should get a decibel meter for the dyno room when doing comparisons.

[@TonyTheTruckGuy]

How the heck did you guys get the black Thrashin'? They only show stainless on their website.

[@staceytoepfert7684]

I’ve been trying to find a good 2 into 1 exhaust for my 2003 Sportster xl 883. I keep finding ones for anything but the xl883

[@alfonsothegreat4481]

What do you guys think of the thunder max tuner??

[@ironwarrior8890]

Stealth pipes...👌🤙... build quality is exceptional...and a lot cheaper than most..

[@michaelmitchell5909]

For sub 2 grand for a pipe , it better perform..., so in other words their both great exhausts for the m8, but stupid expensive...I'll stick with my bassani stainless 2 into 1. Great video tho guys, love what you all are doing.

[@thechiefengineer5886]

I would like to see how the s&s super street with cat compairs to it , i just got it but i cant find any thing on line

[@xanbiker]

I like the looks of the Trashin pipe better, but the HPI sounds better.

[@andrewmartinez8593]

Let’s not Forget thunder header .

[@elijahjernigan5863]

do you ever tune the gearing ( front or rear sprocket) on a bike.

[@DaveGme]

Where did the term "Dog Balls" come from? Great content. New Sub. Bell rung.

[@bobswanson3546]

How do I get one of those pipes and how will it work with my build? I have a fueling racing cam plate words 22 Xe cam and I’m ditching the Harley tuner for a Dyno

[@patricksandler-hodges7584]

What you guys think about the thunder header pipes?

[@Twilson_Vtwin]

Can’t beat HPI as far as build quality and how light they are. They make great power too. I love the 3 piece construction. You can pull the pipe off to clean it in less than 10 minutes. No one touches them in quality.

[@ianloyd6384]

Check out Stealth exhaust pipes. Kruesi originals channel.. look at the build playlist. BAMF pipes 💯

[@Twilson_Vtwin]

@@ianloyd6384 half of them the mufflers droop downwards

[@BikesAndSquids]

Do thrashin make pipes in black for the ST? cause I don't see it in their website

[@Chrisbea3981]

Looking to do a 128 kit but want to keep my Reinhardt slimlines Will that be a problem

[@anthonypenna5961]

Chris how do you like 819B Maxcell cam for 114 fatboy with bassani pro street turnouts?

[@ne.laser_jon]

anyone have any experience with the Rinehart 2 into 1 exhausts? not the slip ons. I'm trying to find a balance of performance, budget and nothing too loud

[@matt_wrx4775]

Baffles me how expensive headers are for bikes…… flat out ridiculous compared to cars

[@freebehindbars8654]

Love my bike, but the quest for power out of these air cooled HD’s is a money grab.

[@Chumbucketsecret]

@@freebehindbars8654 I learn new things about my bike every day! Had no clue the radiator was on,y for aesthetics.

[@TheCuttz1984]

Yes. For sure. But car ones rarely get seen. So they have to take extra care making them look good

[@2WheelDylan]

No pun intended 🤣🤣

[@BlockheadMoto]

@@Chumbucketsecret Who told you that? The radiator on M8’s cools oil that goes to the heads.

[@colinnewbigging454]

What would chris's going to tuner brand and model for a twin cam 103

[@Elkslaya1]

Excluding the 2 into 1, which works best on a Milwaukee 8? A 2 into 2 or a 2 into 1 into 2?

[@snowmaster6996]

What are anti-revolution chambers and what are they used for, and how do they work? 3:37

[@FRWD_FXLRST]

What’s the difference between the FA35 and 30/30 cam?

[@adamhill2788]

Does this exhaust science apply to twin cam bikes? Or strictly Milwaukie 8 bikes?

[@mattgoodmangoodmanlawnmowi2454]

If enough people pay in advance for an upgrade, Harley will make them. Personally I think some of the markup is because other cat delete options are also expensive and don’t provide as much of a performance upgrade. Just an idea, but HD didn’t invent that game. But I’m glad my new bike is a turn of the century Triumph triple liter bike. Faster than you think for reasons I think I will take to the strip. But stock quarter is 11 flat. And no electric nannies. I need to feel my bike. And I feel the need…but that HPI setup sounds really good.