Are EXHAUST Modifications REALLY Worth It? Full Exhaust to OPEN Headers! (Exhausting Dyno Test)

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[@michaelgrubbs1983]

Thank you Jeremy for all the support you give the Veterans 👍 👍

[@thesquirrelchroniclesakare7808]

Yessir. Thanks

[@michaelgrubbs1983]

@@thesquirrelchroniclesakare7808 omg thank you for saving squirrels.im an arborist and i rescued and live with a Southern flying squirrel ❤

[@bigman55434]

From a peacetime veteran, thanks for remembering those that gave a lot more than a few years of their lives. Most people take today for granted.

[@Samvlog1138]

kzbin.info/www/bejne/b5jQaIRrbMyDY8U

[@Baby_Bear769]

> hmm good test! > *sees flowmaster products installed* > yup, 1000% going to pick up power taking those off. 😂

[@FuqUYouTube]

Crown Vic~ scaring stoners since the 90's!

[@eriv4735]

80s

[@GottSegneDich]

One thing I like about your channel is that you show how to squeeze bits of horsepower out of a car without jumping straight into forced induction. Nobody else ever shows this stuff.

[@patrickmccrimedog9844]

PFI Speed does as well, and they are great friends. Although it's usually just squeezing out as much power from whatever vehicle is brought in that day, all sorts of engine setups

[@4eyedturd663]

I like that too and he can dyno it and give actual results.

[@177SCmaro]

If you picked up 30whp (40-50 crank hp) just by opening cutouts your exhaust is ridiculously restrictive.

[@kylandaminick13]

So what's better for a budget build, a aftermarket exhaust or just getting a cutout and keeping stock exhaust?

[@177SCmaro]

@@kylandaminick13 Cutouts are usually way cheaper, and louder, then a full exhaust system. Plus you can leave them partly open if you want something between open and stock but this might not be legal depending if you live in an emission testing county. A full exhaust system usually sounds better then stock or running around with partly open cutouts and is more efficient all the time then stock exhaust but is more expensive.

[@kylandaminick13]

@@177SCmaro I appreciate the input! Definitely will be going with a cut out for my situation lol. Thanks!

[@kylandaminick13]

@@177SCmaro I'm in michigan so no emissions testing 😁

[@177SCmaro]

@@kylandaminick13 Lucky you. Yeah, you can do pretty much whatever you want then. Just don't get a noise ticket.

[@markmayer948]

I my self am an automotive repair technician and custom exhaust builder. I agree 100% with Jeremy the magnaflow or dynomax are two of the best flowing mufflers on the market and both are very affordable, and also in my opinion the best sounding. Awesome work Jeremy keep the great content coming.

[@ajlehn2]

Love the dogfather t-shirt and your Goldens

[@edsmith150]

Right I want one the dog father shirts

[@REDBIRD-95]

"I'm a huge fan of the MagnaFlow mufflers. Those typically flow the best, have a very decent sound, and they're an excellent bang for the dollar." Same here Jeremy🤘🤘👍👍

[@niccadoodles]

They sound great with the unequal length headers on my 04 forster xt! So many mufflers markets towards subarus make them sound too ricey.

[@RotaryTurbo]

You can also quiet down and exhaust system quite a lot by using multiple in-line. Common on 4 and 6 cyl setups with single exits, but could also be done with duals. In the midpipe section, use a long straight flow 3 chamber Magnaflow, still straight through but has 3 chambers to tone down noise. Then, another straight flow at the rear. Quieter and arguably better sounding than a Flowmaster and flows WAY better since you're still straight flow from at least the cat back of if you are cat less it's straight flow all through. Just some extra weight and cost.

[@derekstewart8175]

Almost as good as DynoMax Ultra flow SS welded race mufflers

[@jamesmedina2062]

rotaryturbo07 Straight through mufflers can flow better than straight pipe due to the reduced friction over holes but this only pertains to superior equipment, not cheap stuff like Magnaflows

[@joenels4356]

cherrybomb glasspacks cost 15 bucks lol

[@adamtheninjasmith2985]

God bless America, the veterans that served and fought for our country and our service men and women that serve our country now! Thank you!

[@matyLSX]

Your such a great teacher I love how you explain everything makes it easy to learn and understand.

[@mannys4539]

Holy crap I guess it on point! usually I'm off by a bit but actually guessing it to the number makes me feel more confident about my ideas for tuning engines- thanks for the video it's always fun trying to see how much added power we can get from these things

[@michaelcousins2526]

They call em "Dronemasters" for a reason!! Magnaflow or Dynomax all the way!!

[@springwoodslasher79]

It has drone because the pipes are cut off right after the muffler. This is common knowledge. The fact this guy didn't know that is embarrassing.

[@jamesmedina2062]

There are more mufflers in the world than Magnaflows and Flowmasters. You think there are more car brands than Ford and Chevy??

[@airsoft9077]

My dynomaxes rusted in a couple months. Not too happy with them lmao

[@ej1025]

Borla is my pick.

[@codyramos3200]

Not to mention there's approximately 1000 different flowmaster mufflers. Lol . The 2v Mustang I have has some kind of flowmaster's on it off road x pipe and turndowns at the axle .. deep sound that gets a little raspy up top. When it had the stock h pipe with gutted cats same fm mufflers and tailpipes it was raunchy and raspy . When I put the turndown with factory h same fm mufflers only change was removed tailpipes and put turndown's at axle it deepened and quieted the exhaust . Same with the off road x the exhaust got quieter lol .

[@cyledavis4982]

It would be cool if you did a Dyno run with the AC on and then one with the AC off and see the power difference. I always wondered how much the AC takes away from your engine

[@gtpfiero]

Thank you Jeremy for the support to those who are not forgotten. It makes my day watching yours and cleetus's videos when I get the chance down range... keep up the good content sir!

[@markley02]

I wonder if you removed the mufflers, reset the ECU then drove it around for 100 miles or so if the ECU would have changed the fuel trims enough that even when in open loop it would give you a better AFR than your blocking the intake around the MAF.

[@DynoLess]

Fuel trims won't affect WOT sometimes. Only certain cars and not by much. Ex. The new 5.0 mustang's have wot fuel trims. 2012 and up I believe. But they come with wideband from factory (stock)

[@vincentrobinette1507]

Besides better mufflers, I would put the Catalytic converters AFTER the X pipe. That would give a more steady flow through the converters which would improve their effectiveness, and reduce the effective restrictions of the converters. That makes the capacity of BOTH converters available to EACH header collector.

[@bbbnnuuuhgg7016]

To get optimum results from your cats the closer to the headers the better they work

[@vincentrobinette1507]

@@bbbnnuuuhgg7016 I do believe that it's because of heat. It might be possible to header wrap the pipes between the collectors and the cats, to keep the exhaust temperature as close as possible to collector temperature before it enters the cats. If the car has oxygen sensors, they need to be in the collectors, for the quickest response time.

[@annamaysdaddy]

I am really interested what cutouts would be like on a vic. I have a 2011 CVPI and was thinking about going with cutouts. Would you do that on this one? PLEASE! Also thank you Jeremy for reminding everyone about the true meaning of memorial day I am a Vet and have lost brothers over seas!

[@muaminhugsy4964]

Can you do the same test but with a turbo boosted vehicle? That would be interesting 🤔

[@ponypwr]

Basically if its the same engine setup you double those gain numbers. 30-60whp can be had easily.

[@maxboya]

Use a 2015 F-150 2.7 ecoboost as a test mule

[@turtle2448thomas]

@@maxboya He'd use a real engine if he were to do it

[@markley02]

It would probably introduce even more variables unfortunately as that can increase boost. Also running lean on a FI setup is worse than a NA setup. Maybe if it was on a speed density setup instead of a hotwire MAF they wouldn’t fluctuate as much.

[@ryanmalin]

turtle2448thomas you know damn well the eco boost makes good power and is a “real” engine. It sounds like shit but it makes more power than the 5 liter stock vs stock.

[@jedr.3494]

I'm so confused about how some of your dog videos and this intro has mountains? And the shop is in Tampa or wherever in florida right? Can you answer this question for me and curb my curiosity!!

[@mr.m3837]

Maybe that's a clip on their on vacation?

[@86thirdgen71]

I believe they don't actually live in Florida but somewhere a little more north. That's why you don't see him in the shop every day

[@michaelblacktree]

Those Flowmaster 40's are notorious for drone. IMO replacing them with Magnaflows is a great idea.

[@jamesmedina2062]

m.blacktree What about Borla? I think MF suck

[@mrmidnight32]

This is kind of a useless test with out s tune for each set up. Show you what it actually does when accounted for. The fact the AFR is so jacked is already hurting one over another unfairly

[@lunkydog]

Flowmaster 40s, making rear seat passengers miserable on road trips for over 20(?) years.....

[@theangryitalian7922]

lunkydog lmao

[@charleybetts1053]

Haha

[@davidbailey4036]

Since the 1983, unfortunately.

[@davidcunningham00]

I absolutely hate flowmasters, I put a set on my pickup years ago and within two weeks yank them off and put a glasspacks on and I have been happy since. Cherry Bomb all the way.

[@davidcunningham00]

@Island Mike they sound horrible and they kill power versus a glass pack

[@bri-manhunter2654]

I think they sound great! Input them on everything I have.

[@davidcunningham00]

@@bri-manhunter2654 each to there own

[@balzonyr4head]

I have run black widow for years, love them loud AF and flow great.

[@jamesmedina2062]

balzonyr4head it feels great being obnoxious eh?

[@bearfoot25]

I wish s,ome people on the Mustang forums would watch this. all i ever hear is how removing the mufflers and cats makes your lose power.

[@lancelot1953]

Hi Fasterproms, Veteran comments here (three wars, 118 combat missions), this is a great video. Thank you for making it "down to earth" and thank you for the nice words and your support of Veterans. It is always nice to hear - and yes, "may God bless you" as well, Ciao L (1970 Mustangs)

[@mjmcomputers]

Thanks for sharing the MAF trick.

[@69Dartman]

When you have the tools and toys it's fun to see how things react in the real world and what really works.

[@stlchucko]

Those 4th gen Camaro flowmasters are notorious for robbing power

[@C6Z_Bob]

The previous owner had one on mine. Ripped that shit off for a GMMG right away, then I cammed it and needed something quieter and I want with a Magnaflow with a cutout.

[@dwight072]

Flowmasters ..... you mean Flowstoppers

[@tico4940]

spintech flows better than magna flow and blowmasters.

[@jamesmedina2062]

correct: traditional flowmasters dont flow well. They have some new designs with better flow.

[@bryanroupe8646]

Thanks you to all serviceman and woman, current and retired.

[@JUMBOpin]

+ all pow's and mia's

[@JimBoomer]

It is interesting to see that you use the more standard SAE dyno correction and Cleetus always uses STD ;) haha

[@Fasterproms1]

Depends on the weather. Sae is designed for a 60 deg f day and std is about a 70deg f but there’s nothing for anything warmer.

[@JimBoomer]

@@Fasterproms1 Ya, I think std is usually about 4-5% higher. SAE is just more realistic for comparison. Especially with a broad audience.

[@clyde8759]

Everytime ppl take time to thank us vets we thank you...personally makes what I did worth all of it.thanks

[@brodyfields3453]

You should look into Paradox Performance Mufflers! They are hand built here in Marshfield,mo! Mike Barrett invented the technology and they are made of stainless steel! They sound great, flow better and give you more economy and I think they would be a perfect fit for the Crown Vic! Mike owns his own exhaust shop and used to be an avid drag racer! The dude is the real deal hot rodder and everything he builds is quality!

[@Forcefed2002]

Are these mufflers you speak of a pass through design or chambered?

[@brodyfields3453]

It’s a pass through tuning fork technology. It’s a design that’s has never been used before that Mike invented. You can find him on Facebook at the Paradox Performance Muffler page

[@davidblalock9945]

125 db straight header! Oh my!

[@mouseinthefalls7836]

Hay there Jeremy, I have a 99 Silverado 1500 with the 5.3 L, I took the muffler can out of the back of the exhaust and installed a 36 inch glass pack with a 3-inch diameter Inlet and Outlet. My truck sounds better and I think I picked up a little bit more power because of the Free Flow Design. Do you or anybody else have any other ideas that would help me get more power as far as exhaust modification goes?

[@Fasterproms1]

Long tune headers and a tune with magnaows

[@groundshakersociety6637]

Happy memorial day to all of our veterans and our troops

[@johnboston3372]

Wrong day . This day is to remember those who have fallen not who survived it's a big difference and will piss some vets off

[@REDBIRD-95]

I like your shirt: "The DogFather" 😁😁👍👍 Those Retrievers must be a handful😁 You should make a shirt for your wife: The Dogma😁

[@wesley8599]

And the "Carma" as well. If my girl asked for 700hp in a daily she can gladly have me for life.

[@bossgoss2284]

More ! More ! More!!!! I am taking new steps to improve my truck and car that I built , I truly appreciate the info ... it's fun to see how the things we did as youngsters 35 years ago made a flat difference... thanks!! Oh and how do you talk shit about flowmasters... I ran 10.40s when I was 20 with them on my car...lmao.... jk .. about you talking shit!!! Jeremy... thanks

[@TheTsunamijuan]

@Fasterproms , Jeremey and crew, have you ever heard of someone using a chain instead of a belt for accessories? I know that belts often have much more of a slippage loss. Which in some situations can be a good thing and others be a bad thing. (obviously belt tech has gotten alot better over the years too) But I believe the losses for gears and chain and sprockets are much lower than that of belts. If so do you know what the negative where of going to such a setup?

[@FrozenMonkey14]

I've got Magnaflow Magnapacks on my 4.6. They are stupid loud ( and sound fantastic) with no cats and a X pipe.

[@ryanmalin]

FrozenMonkey i had the same setup on my 95 tbird (2v 4.6). I eventually put cats back on it. Sounded better with cats.

[@FrozenMonkey14]

@@ryanmalin I'd like to get a high flow catted H pipe to replace the catless X I have on it now to get rid of the gas stank. Glad to hear it still sounds good.

[@carlgill5946]

Excellent videos my man and I really love how much you can learn from your videos that's something I look for ! Keep up the very cool stuff !

[@Brock_Landers]

I'd do full length headers with true 3" duals to Borla mufflers...

[@konnerkramer3381]

Just stick to your 4 bangers.

[@markmayer948]

But the only problem with Borla is the price way over priced for what it is the dynomax ultra flow ss is very similar and about a quarter of the price. I think I’ll stick to dynomax.

[@konnerkramer3381]

@@markmayer948 borla Is so overpriced. I don't even like how they sound. Too high pitched and raspy. sounds like straight piped just with a higher tone.

[@DarkLinkAD]

@@markmayer948 Why pay that price for a dynomax, I can get a painted glass pack for 20$..

[@eriv4735]

3” exhaust is far too big for a 281 cubic inch engine..some people just don’t belong near cars 😂

[@lerch400block]

Do you need to do anything to the o2 sensors after you cut out the cat? I did this about a year ago on my 98 Z71

[@FaithWRanch]

Jeremy, get with SCT. They have the best software for stock Ford electronics.

[@208Concepts]

Minus not having the ability to emulate... Personally I recommend a Quarterhorse with Binary Editor or TunerPro for the more daring

[@vxscenario1359]

How much would a exhaust cutout cost that is good and actually works

[@kevincrawford7439]

Who else was watching the dB meter climb during the dyno test?

[@BlondiesGarage]

Thank you military heroes! Loved the video ❤️

[@alexistracy9458]

Blondie’s Garage oooh I love your channel blondie

[@Sir.VicsMasher]

Please convince Cleetus to swap the super restrictive factory exhaust manifolds off Project Neighbor in favor for some long tubes? Oh and get a larger throttle body to work since the one on their now is acting like a restrictor plate. I bet those two parts are holding it back +120hp

[@THEREAL_GZUS]

TurboDieselDan u crazy if u think 120 hp makes all of that !!

[@joncarroll9613]

I'd like to see if you could put on a set of Porter Steel Pac Mufflers.

[@ViperDemonWright]

Personally I like the sound of Magnaflow mufflers.

[@Texantroll]

ViperDemon6819 Wright I personally like the sound of power

[@gtd360]

Alright I'm pausing the video at 2:09 and making my gain guess. I'm guessing 15 hp gain. If the flow master are pass through. Removing old cats might bump it up a bit more.

[@wheeliesarelife2311]

Damn you were close

[@808G8GT]

Flowcrappers suck. Tailpipes our the back bumper will reduce drone. I prefer borla, or magnaflow. Right now I have I have Xforce full 1 7/8 headers and xforce fill 3" cat back exhaust on my daily driver G8 with a ls3....they sound deep and powerful wide open....and mellow almost stock when the electronic valve is closed. Open headers us the only way to go on my 427 lsx heavily modded 4th gen camaro.

[@farhan7393]

Why did cutting off your exhaust make your car run richer? What's the explanation? Did you have to to cut off your O2 sensor too?

[@Scootermagoo]

As someone who ran 40 series on a 400ish hp motor tailpipes is probably the only way to get rid of the moan. With my experience generally a header a x pipe and duals out over the rear end makes enough power to not make a difference in corked or uncorked, et/mph wise i tried it both ways and it made 0 difference. I'd rather have it quiet. I'd stick to the x and a decent muff and add tailpipes and not worry about 12hp. and 3inch is a waste of time and money. Jeremy as someone with experience in small block fords, don't waste your time with the 3inch, the motor is to small, you need 400-450ish hp to make 3inch worth the effort. It'll just drone more and piss the neighbors off more and it might slow you down from the extra weight. I know the children in the shop joke about the dad bod nonsense but this is a heavy car and adding the wrong sized exhaust isn't going to help. Trust me I spent a couple grand on headers and exhaust systems. on a 8000rpm 302 on the street, your wasting time and money for 12 hp and 3inch exhaust. If you want to make more of a difference buy better headers and play with collectors a tri-y collector the x pipe 2 1/2inch pipe and tailpipes, it'll be much more enjoyable driving the car and be just as fast except for the 100ish lb's in weight.

[@jmunsey5482]

Thank you jerry for the support you give the veterans most people don’t understand what they have been through my dad was in Vietnam served 3 and got shot with a ak-47 and that next morning after he got shot his tent got bombed and he has grenade pellets in his face

[@Todd_S]

I'd really like to see a direct Magnaflow vs Flowmaster dyno comparison test back to back with no other mods.

[@1439of2000]

How many of those are already out there?

[@brian_sipe]

I've long been a proponent of ditching Flowdisaster mufflers whenever the opportunity presents itself...

[@steelwindv2]

I know you say you want to go with Magnaflow.. but have you considered Black widow mufflers?

[@240sxjunky9]

Do full 3" exhaust with magnaflow mufflers and electric cut outs.

[@StockDarkMatterGrayEB]

That would sound sick.... But what about glasspacks instead?

[@Turbogto_guy]

How are you going to tune this when you turbo it? I think you should go ahead and get equipped to tune this or do what you are going to do to tune for the turbo that way you can do these tests with it tuned correctly. Still loving all the vids! Thx

[@Fasterproms1]

I just got the hardware and I’m going to get the software. I cannot show or talk about the software with my hptuners deal. Glad you are enjoying!

[@Turbogto_guy]

Understood! Anyways, keep up the good content. I’ve got to the point where if you and cleetus have a new video, I watch yours first. Don’t tell him tho! :)

[@davidwhitten8985]

Tail pipe placement is probably the main reason for the drone. Every vehicle I've ever worked on or owned had mild to super annoying drone with exhaust exits underneath.

[@jackjr1]

I have yet to see a cat vs no cat dyno or video. Maybe you can provide some insight on powerloss of a cat or do a video on it!

[@shawnmiller9381]

Answer: No. Not without modifying the valves and passages coming out of the cylinder head.

[@treschoen9177]

What happened to the all wheel drive turbo truck build??

[@johngz3413]

Yup corvette mufflers 100% i have a 4.6 and a 5.4 both 2valve heads. I wish i had corvet 3inch to put on my marquis.

[@Eledaraumar]

Wait wait wait, what are the mods already done with that 258whp baseline? 258 at the wheels for a 4.6 2v is pretty stout.

[@0xGRIDRUNR]

That trick with the airflow sensor is super cool!

[@sixdsix5028]

If you remove the exhaust valves, you can gain another 20 whp

[@rapdfyr1]

I had close to the same setup(no cats) with 2.5" magnaflows,switched to 3" Flowmaster 40's and lost ET. Went to 3" magnaflows and never looked back. I did like the low tone of the the Flo's but not how much power they robbed,

[@ChristopherGaul]

I think all this video reinforced for me is that it's not worth the noise and illegality of running straight exhaust on the street. Quality brand, vehicle specific, free flow exhaust systems with headers, high flow cats and mufflers are totally worth it, make big gains over stock, and keep you legal. If you ever actually do race, install cutouts to use at the track.

[@jakster1952]

Jeremy, you're living large. Thanks for your efforts. I too owned Golden, great great family members. 👪👍⭐

[@davidjames2788]

Try it with just headed extensions.

[@ryanmalin]

That’s a nice trick with the MAF. Never seen that but it makes great sense

[@enricotavella4148]

Damn Jeremy, this video was very interesting and informative. Great job man!

[@WoodLox]

Flowmaster are dinosaurs, when tuning was in infancy. Diverted airflow use to work, now it’s just a diversion. Before then it was straight pipes. I’ve tried recently, too loud with full length. Would be a nice video to see gains if any on this old school upgrade.

[@BBROPHOTO]

Jeremy, you're really great at explaining things - thanks for these videos ! :)

[@Jstall7543]

No way bro, flowmaster add 15 to 30hp! Lol just playin! The dyno don't lie

[@MandyRobWallace]

Do glass pack style mufflers Rob power?

[@ahack14]

Should call em no flow masters, or blow masters case they blow

[@jayssontansey6832]

Slow masters

[@henryrobinson9837]

actually good info, and advice ,the manufacturer spent millions for the design the percentage aint worth reliability

[@brandonputman6988]

Get Corsa axles backs with a pypes off road x pipe trust me it will sound amazing I know mine does

[@tbirdracefan]

What about a switch to dis-energize the alternator momentarily?

[@NBSV1]

tbirdracefan I’ve actually done that on a car before when we had to build a harness. It’s only a couple of HP at most. As you spin the alternator faster it works less hard to charge so takes less power. And the fan on the alternator tends to stall at high rpm so even though it takes power it isn’t much.

[@joshuakinney3211]

Thank you for taking the time to thank veterans in your intro. Be blessed. ❤️🇺🇸💯

[@jadajada405]

the dog father indeed . i love your dogs

[@Turner1983]

Are those pi heads?

[@RussellBrosGarage]

I would like to see the Crown Vic make boost, but with scuba tanks! DO IT!

[@rickgrimes4133]

Awesome bro, slug masters yuck!!! Agree 100 about the magnaflows!!

[@Dontgetenslaved]

I'm running thrush 2 1/2 in flow throughs with back cats off. Everything stock other than that. Sounds good to me.

[@Dontgetenslaved]

My preview video is up. I'll get a better one once I'm somewhere I can get out and rev it up some. It's really quiet cruising. No drone. Sounds mean enough when I get up on it. Not overly loud. Just a dd so I'm not sure how it affects power. I'm sure it.picked up some over stock though.

[@NiteHawk861]

Flowmasters are not for performance 😎👍🏼 Just run x pipe straight out the back

[@bilbobaggins4710]

Flow masters dont flow??? Hmmmmmmm 🤔😱 that's false advertising...I'm gonna get a lawyer tomorrow

[@alexelrod242]

"This time on engine masters!" No lie, I'd love to see a collab between engine masters and fasterproms

[@the_real_greywolf]

I've been happy with my Borla exhaust. Sound super American

[@jouleskelvin]

Just bought a Billy Boat exhaust...also made in USA. Great sound too.

[@Dfour]

Haa Slowmasters, MAC made the only good chambered muffler

[@sheady7659]

Happy Memorial Day, and just Love those dogs! :)

[@Greg1096]

Why not just get the software and go a little less ghetto? Learn ford tuning too and expand your customer base.

[@Fasterproms1]

It’s a little more complicated than it seems. Hptuners supports later year vehicles and not this year (contract). I do have the hardware now for another software and I will tune it. I’m not looking for more work as we have been overloaded for a few years now.

[@tomtritt1766]

3 inche straight pipes all the way

[@MrDavidelliottjr]

Gotta get ya some tuning software for the modular fords. Love to see ya make some power on that vic. Well done Jeremy 🤣

[@ianm432]

Hp tuners supports a number of years of Crown Vics... Just not this one unfortunately.

[@FishFind3000]

Ian M but it’s a mercury marauder. If it’s still compatible with other models but same engine it might work. The 4.6 was in suvs and trucks.

[@ianm432]

@@FishFind3000 what are you talking about?

[@ianm432]

@Trigger some Liberals that's not how it works and he also stated it's a Mercury Marauder. You can have the same engine and transmission in 4 different cars with 4 different factory ecu's.

[@kierenalvarez]

So what about torque? Subbed, wanna see more scientific dyno testing!

[@setharnold3699]

Agreed! Don’t why he left that out?

[@EricFixalot]

That was probably a solid 40 pounds of weight reduction, plus the power gains. Definitely worth it on some applications.

[@daredevil7442AUTOMOTIVE]

good video & information.

[@chevy2061]

The dogfather shirt is 😎👌