2021 Mustang: Stock Exhaust vs. Steeda X-Pipe & H-Pipe on the Dyno!

[@jugobetrugo7213]

2:00 Stock 3:06 X pipe 4:14 H pipe Thank me later

[@missm3881]

THANK YOU!!!!!!!!!! LOL

[@francfurian8215]

Thankyou so much Cheers😊

[@QtheMisanthrope]

Just installed my h pipe yesterday and I was not prepared for how loud it was in person 🤣

[@overtorque]

I've worked on Mustangs for years and though the X Pipe gives more power, I love hearing an H Pipe with that American muscle tone the way a Mustang should be heard. My 2006 Mustang GT did lose horsepower when I switched back to an H Pipe from X Pipe but, I gained some torque and it sure puts a smile on my face!

[@williamlezotte7954]

Had a Corsa dual helix pipe on my Shelby GT 350 with resonator delete and it sounded knarly and raspy - Ferrari like. Very European. Not at all like an American muscle car should. Swapped out for a Steeda H pipe and improved the sound tremendously. Deep throaty muscle car sound - and no more raspy cackling. Very pleased.

[@skipgumphrey9579]

I prefer the tone of the H on my 19 PP1. Seems perfect with a Steeda axle back as well. Could be due to being old school coming from extended Foxbody experience, I like the lower pitched rumble but it is what it is. I don’t think you can go wrong either way...

[@SerendipitousProducts]

Yep.

[@StevoRado]

Love this exhaust comparison. It was perfect and what all other exhaust comparison videos should follow.

[@Cultured_Barbarian]

Great video! I chose the H Pipe for the sound on my blown Mustang. The few HP is nothing compared to the rumble.

[@AndrewBaker302]

I will gladly given up a couple horsepower for the deeper sound of a H pipe

[@8power857]

Its a moot test anyhow, the sizing of pipe work in either seperate dual, H or X is different for a given baseline Hp. Just swapping an x and h or comparing to a true dual of same diameter is only giving you a sound comparison NOT a comparison of HP potential.

[@1forddan]

I have a H pipe and love that sound I don’t like the X pipe sound but it sucks we sacrifice a little.

[@8power857]

@@1forddan done with correct pipe sizing there is no advantage to either

[@1forddan]

@@8power857 what do you mean if I have a Steeda H pipe I can make the rest of my exhaust bigger and make up the difference?

[@8power857]

@@1forddan no necessarily bigger, that depends on the open header peak Hp. Careful setup and dyno trials have to be used to perfect any system. I can make up a test with full dual, x or h that will make whichever one i want look best! You cant just bang in whatever comes in a nice box and expect its correct for every combo, shelf stuff is typically made with 3 things in mind, profit, looks, to be better hp wise than stock, they are far from perfect. H pipe placement V collector length MUST be correct. H pipe diameter V its length is kind of important, pipe diameter after the H is very important, muffler type and tailpipe diameter(which is usually best slightly smaller) all need to be correct for your combo. If made correctly, h pipes make 'slightly' more peak hp and x pipes are more tunable making 'slightly' more average hp/tq in a narrow band around a given/selected a rpm. For a streeter choose whatever sound you like best. But realise that these youtube 'chuck on a h or x tests' are not showing you the full potential of each setup but are showing you only what a generic bolt on item does 'for the specific combo in the test'.

[@bardstables8909]

I'm impressed. So glad I put the X in my car last year. I thought it gained, or feels like it at least. Now I'm not sure I gained the 8 hp you got since I never put it on the dyno, but I'd be thrilled with that gain. And the sound is awesome to boot! If someone tells me they can get me 6 extra hp just by changing 1 part, cost not being the limiting factor, and still sound hot! I'll take it. I want every advantage I can get no matter how small. Sometimes it's the small things that makes the difference between winners and well..... losers.

[@ZoubeirsWorld]

You gained more than 8hp. Thisbtest was done on 6th gear.

[@bardstables8909]

@@ZoubeirsWorld very true.

[@scottnewellguitar]

H pipe for me. Good vid guys!!

[@TonyDMan67]

Definitely the X-pipe! That's the true Mustang sound we're looking for. Job well done.

[@DanielPerez-vt5ez]

Not one day that my x pipe doesn't make me crack a smile! Everyday is a good sounding day. 🙂

[@TheLoneWolf_andCoyote]

I just had my Steeda X pipe installed on my 21 GT PP definitely made the car sound very good my exhaust mods are completed I'm very happy now.

[@funieman1]

Always been a H-pipe guy myself 🔥🔥🔥

[@chrism.728]

H-pipe sounds better and the difference between it and X-pipe is negligible. I would go with the H-pipe. This mod is primary for sound anyway.

[@thedon9670]

100% agree. Just about to do H pipe for mine.

[@tonyzackery]

Do you not see the gains made over stock by the x pipe???

[@chrism.728]

@tonyzackery I wasn't comparing anything to the stock mid-pipe, only comparing Steeda's X and H-pipes. The difference between the two Steeda mid-pipes is negligible. It's better to choose the one that sounds better to you, which most people agree that it's the Steeda H-pipe.

[@KingZD1]

@@chrism.728most people have the x pipe on their s550 😂 like literally go talk to mustang owners irl we all got x pipes for the most part

[@chrism.728]

@KingZD1 Do you know most S550 Mustang owners? I think not... Your statement is not a fact, merely an opinion based on the S550 Mustang owners in your local area. Also, my original comment was my opinion on sound preference, because the Coyote 5.0L engines are naturally a little raspy and an H-pipe adds more bass to the exhaust note to sound like a proper American V8 should sound. The power difference between the two is negligible. H-pipe adds a little more power in the lower RPM range and X-pipe adds a little power in the higher RPM range...

[@ashoemaker72]

Love the H pipe!

[@JesseAndMike]

Awesome! Sounds really good!

[@larryboydjr7461]

I have the H pipe and love the sound and just added the steeda axle back

[@tri3pleagent]

Running the H-pipe setup on my 2020...thing of beauty.

[@RowlandsAdam]

I have a 2019 without active exhaust and want the H pipe, but it’s hard to tell how much louder it is on video. What % would you say?

[@tri3pleagent]

@@RowlandsAdam it's really the pitch that's different. The X is more raspy...has a higher pitch than the H. They'll both be really loud. I posted a few clips on my page if you wanna hear the H at start up.

[@ecoboost04]

@@RowlandsAdam I have that setup and also posted a few clips on my channel. The H pipe is much deeper in person, cold starts are throaty af and sound withbactive is orgasmic. Deff try the Steeda H pipe, its a fantastic high quality piece.

[@TampaDE5]

X pipe = exotic sound H pipe = muscle sound Power difference = negligible

[@OEMPlus]

yep. this is why my cobra has an h pipe, two magnaflows, and a couple dynomax superturbos :D

[@oldrover3007]

Decisions , Decisions , I have to pipe the Video through my entertainment center and listen again . Thanks for posting .

[@DanielPerez-vt5ez]

X pipe worked out great for me on my 2016 5.0 with RTR Magnaflow axlebacks. Good combo since I'm not really into obnoxious loud. Steeda makes some good stuff!

[@StevoRado]

I have the Steeda H-pipe and Magnaflow Competition axle backs on 2020 GT PP1. Very deep and not annoyingly loud. It does have some drone but I don't mind it.

[@foristj]

Question: Does the Tune make much difference on the Mid pipes? Switching one X to a H pipe , tune is the same or do you need to Re Tune?

[@StevoRado]

@@foristjI don't think you would need to update a Tune when only changing the mid-pipe, however, I have no direct experience in tuning cars after an aftermarket build.

[@foristj]

Thanks for the reply Steve, I agree with you that it shouldn't matter.@@StevoRado

[@steedaautosports]

Correct! No tune required for the mid-pipes!

[@StudPack]

Awesome Video Guys! Perfect comparisons

[@rickymedina7563]

H pipe is louder at lower rpm's because the exhaust tumbles around before exiting, at wot it acts almost as straight pipes. X pipe sounds more smooth because of better flow, the exhaust is hitting a wall as it exits. So if you like a loud exhaust at lower rpm's which in turn makes it deeper get the h pipe, like I did. Quick tip though if you get the h pipe and then delete your cats, it will change the sound a lot! The more flow, the less effect the h pipe will have on the exhaust, because the faster flow will allow more gases to bypass the "h" and it will act mostly as straight pipes. That is the issue i had and will be adding a second h pipe to help "catch" any missed gasses from the first h pipe, might even add a third who knows lol

[@dominiczanella8443]

I chose the H-pipe for the muscle car sound. Not a fan of the raspy sound of the x-pipe. HP gains can be had other ways also. It's a matter of what you want to hear

[@AStanton1966]

I'm about to have a Steeda X-pipe installed on my Mustang GT with active exhaust. The active exhaust defaults to normal mode every time the car is started. I'm hoping to now leave it in normal and get a little extra sound.

[@granthenneke]

The X pipe sounds insane at 7500 rpm. Straight up nascar!

[@toddsb07]

Nice gains. Great information

[@milleniallgt9715]

X Pipe, baby! More exotic sounds and more power! 👍🏼.

[@controversyV4S]

they both sound great but yea X-pipe is where its at!

[@Karrottop009]

I'm rather surprised how low that car is reading on a dynojet, even in a Georgia summer. The gains would be separated more if results matched most 18+ autos that put down around 410-415 stock in similar air. For reference, my 18 with a manual, x-pipe, and muffler delete put down 434/399 with a dynojet set to STD correction for 3 back to back pulls in 92F humid Missouri.

[@srhatfield]

That's exactly what I thought too... that car should be over 400hp! Maybe because it's an A10?

[@TerpTaster]

I think it’s because they were limited to 6th and not 7th gear for a 1:1

[@ShizawnSanders]

@@TerpTaster no, that's not it. My GT on a different dyno in 6th gear on 91 octane got 405RWHP SAE. Dyno's are just VASTLY different.

[@xGR1MxREAPERx]

This car didn’t rev as high as some do. Stock they seem to rev o 6500-7100. This one is a little low revving. This car would make huge gains from a normal tune as it would rev out to 7700. Some cars stock for whatever reason already rev out to 7100 and do t gain as much on a tune since it is already in the power and. Either way thisnis a great dyno to show the difference on same car same day same dyno. x pipe increase is insane.. these cars are at 6000+ tpms the whole race or highway roll so x pipe is a way better option if your racing as it gives tons of power up high and consistent

[@sergebasque8460]

My 2017 with and X- pipe with GT-500 axel back is sweet music no drone at 2300 rpm with 3.55 gear

[@timothycann7086]

Go with the flow !

[@caio2306]

Great video! Great comparision!

[@UR_AL_SHOOK_UP_21]

Great video 💪

[@fgj8379]

This is a great comparison video! I'm sure many people wonder about the power, sevevenn though they usually want the sound.

[@ThrottleHavoc]

Definitely H pipe, I would hate to go X pipe with headers and have my car sound like it’s dragging tin cans behind it every time I accelerate.

[@THATNI99AJOHN]

This

[@bitedawg]

"H-PIPE" ftw!

[@ginob615]

What you all came here for... X @2:43 H @3:49 I have a 2016 GT convertible, how bad is drone with either option? Prefer the deep H tone but would go X if significantly less drone. Hope you all are appreciating that active exhaust! Lucky ducks!

[@steedaautosports]

The drone is pretty negligible in both options really. There is a slight bit more in the H-pipe but nothing that would be noticeable to most people.

[@JCTiggs1]

The stock resonator on the GT is essentially a straight through design so I'm surprised the h-pipe actually adds a bit more power.

[@sergebasque8460]

Have the x -pipe on my 2017 mustang love it with GT-500 axel back.

[@Lord.Crawford]

H Pipe sounds amazing on the V8

[@pad076]

Stock vs H Pipe 1:19 3:29 1:29 3:38 1:40 3:49 1:48 3:58 2:01 4:14 2:08 4:22

[@leviefrauim1425]

What is this "quiet mode?" Never heard of it and honestly, it should be illegal. And H pipe for the win, of course, for nothing other than the sound. But if anyone thinks they're going to feel those few extra HP because of the X pipe over the H pipe, it's all in your mind. H pipe every day, all day.

[@rod928s4]

"Quiet mode" is the first of 4 modes that you can activate with factory active valve exhaust. The others are normal, sport and track. Since I have an H-pipe on my 19 GT, it is great to use this so when I leave for work in the morning, I'm not bugging my neighbours. Why should it be illegal? It was developed by a Ford engineer for this very reason.

[@leviefrauim1425]

@@rod928s4 It was an attempt at humor, sport.

[@coyotefishtx7336]

Just traded in my ‘17 GT that had the Steeda X paired with outlaw axle backs. Super gnarly, aggressive, and just plain mean growl at will, but was definitely LOUD inside and out. Gonna go with the Steeda H for my new ‘21, but wondering if you guys are able tune that year model yet? Also have the hardcore closed intake from my ‘17 on standby.

[@marine0331inf]

X pipe all the way!!!

[@truckandroll989]

I feel like you touch on it but what type of torque gains are you seeing before peak torque? Looks to me like both H and X are making 30ft lb over stock at least before 4500rpm or so thats huge!

[@EGARides-87]

See, a lot of people are only focusing on the peak numbers. At 2500 RPMS, both the H and X are outdoing the stock by near 30 wheel horsepower...

[@Nastyflow61]

Wow really that much difference in hp between the two, obviously it’s not allot but it’s something

[@MrClubchaos]

Cool video with automatic. What about a 6 sp manual 1:1 in 4th gear test? I have a 2020 GT PP1 with active exhaust you can test!

[@Gmny1MOA]

This answers a question I had ab power gains and an xpipe...I had mine done at an exhaust shop and he did awesome work but I have cats xpipe and no mufflers and I noticed the power gain immediately...I busted loose in 3rd leaving the shop and it didn't act that way stock

[@TheFreshwater1]

Is running in 6th gear causing it to read lower overall?

[@wilddave1]

Yes, it's also cutting off at 6800 rpm, making me think they are still hitting the limiter.

[@TWISSTR]

1:40 2:43 3:49

[@SerendipitousProducts]

Hpipe with Steeda aggressive tone axle back.

[@kel50pp]

I'm going with the X but next time you do an exhaust review please do it without the music.

[@brandonramey4114]

PLEASE FOR THE LOVE OF GOD, STOP PLAYING MUSIC OVER EXHAUST REVS/DYNO

[@mrnicktoyou]

Isn't the h-pipe supposed to be 2/3's of the size of the exhaust itself? That h-pipe is the same size as the exhaust.

[@JH-ye8fd]

what kind of dyno are you using that a 3rd gen coyote is getting 371whp on? losing 90 bhp to drivetrain?

[@inv8999]

It seems like a full piping system starting under the cats...not only a resonator delete !

[@steedaautosports]

Nope, just a resonator delete! -Chris

[@francorepici3586]

I have a double helix x-pipe. Does that make more or less hp than a standard x-pipe?

[@MidwestMotor]

Hey Steeda - in person how much of a difference between X & H regarding sound? It's a little difficult to tell on video. I have a 2021 Durango RT, Tow N Go with 5.7 - I removed the large mid-muffler suitcase, installed X-Pipe and 2 Dynomax Race Bullet Resonators. It sounds great with no drone, but if an H-Pipe can give me even a deeper sound I'm going to replace X with an H. And does it matter how long the tube is between the 2 pipes (how big should the H be)? But this will be a $300 job and want to make sure it's worth it. THANKS! 🏁🏁🏁🏁

[@steedaautosports]

Tough to say with the different engine, but it definitely helps change the tone on the Coyote Mustangs! -Chris

[@pheonixfps9248]

X pipe for me. I'm spending coin on something, I want power. If I want more sound, just go straight through.

[@Nozerone]

So the only thing I really took away from this. Either the dyno I went to wasn't calibrated right, or my car has a tune on it. Cause my 2015 base GT dyno'd at 390 hp. All it has is a catback exhaust, and cold air from what I can tell, which a previous owner had put on.

[@Tyquelle97]

Is this with a recalibration or just parts?

[@tony3552]

I’d take the h-pipe and I don’t even have to remove the seats for the different in ho from the x-pipe. Plus if the x-pipe is more expensive for just a hand full of hp, it’s not worth getting the x-pipe

[@richiegraham4243]

Stupid question...isn't the GT rated at 460ish HP stock? Why is it almost 100hp down? I'm sure there's a logical reason nobody's mentioning that and I'm just stupid.

[@steedaautosports]

Hi, The 460hp rating is at the crank while the power we show on the dyno test is to the wheel. You can expect a loss of power from crank to wheel through the transmission and drivetrain.

[@filly5.0]

What kind of results would I find in the 6spd 22 GT?

[@brad1908]

I couldn't notice any sound differ between x & h.. Possibly the camera not justifying it? & excuse the uneducated question but wouldn't 2 straight pipes be the better route for exhaust flow?

[@steedaautosports]

X is more high-pitched and raspy, H is deeper with a more old-school muscle car sound. In most cases, it's best to have a mid-pipe where the tubes cross to equalize the exhaust gases/pulses on either side of the engine.

[@brad1908]

@@steedaautosports great information! Thank you!

[@bobbylopez9681]

The x pipe sounds raspy on camera but in person it's great and more horsepower.

[@AStanton1966]

There's a video on KZbin called 2018 Mustang GT resonator delete first impressions by Tom the car guy. His video helped me decide which X-pipe to run with. Listen to his Mustang when he starts it for the first time with his Steeda X-pipe.

[@bobbylopez9681]

@@AStanton1966 I went with the mbrp

[@matt-ts8cx]

I would prefer to hear stock, h pipe and x pipe back to back all in track mode. I think valves open is what everyone is interested. Doing all the modes puts too much time in between the sounds we are looking to hear

[@Island-RC]

Went with your H pipe on my 17 GT, Just traded it in for a 2023 Performace Pack and ordered an x pipe too try something different . Both cars are stick shifts

[@8power857]

Its a moot test anyhow, the sizing of pipe work in either seperate dual, H or X is different for a given baseline Hp. Just swapping an x and h or comparing to a true dual of same diameter is only giving you a sound comparison NOT a comparison of HP potential.

[@hawaii5084]

I’ll go with Malcolm X 2 in 1 power and great sounds

[@reygonzalez7483]

Will the H pipe fit a corsa sport axle back? Or will I have to custom fit it?

[@steedaautosports]

Hey Rey - It will work since the Resonator Delete H-Pipe will mate up to what's left of your factory piping since the Corsa Sport Axle-Back connects further torwards the rear. Hope this helps! -Chris

[@reygonzalez7483]

@@steedaautosports thank you for the reply 🤘🏼

[@Cabe01]

Why would you put music over it???

[@Dude-tb8ry]

Which would give the more exotic/nascar sound? X or H pipe?

[@steedaautosports]

An X-pipe should bring out a more exotic and European sound -Sam

[@sinnedam]

These do not trigger a check engine light after install correct?

[@steedaautosports]

No, they do not! -Chris

[@borika005]

*Hpipe*

[@TacticDanHD]

Want my v8 to sound like a American v8 what do you think im going with

[@aon_coaching]

H-pipe

[@bandofstangs5475]

X pipe for sure. I went h pipe for sound but now that I know I’m giving up some hp, I’m changed.

[@MidwestMotor]

The power is so little though and if you mod your car say Supercharger, Procharger, Turbos, tune, etc...... you'll get more torque with H and torque is what wins drag races.

[@Not-a-bot222]

Trying to get the absolute best from your car, go X pipe. Trying to make the car if your dreams and who cares about the numbers, then get whichever one you like the sound of better. 90% aren’t tracking it anyway so the numbers are just for ego

[@moyrod1]

X pipe i would like to know if a 3 inch cat back with an x pipe would have some power loss i have a 2019 gt mustang auto with a Roush supercharger and i been thinking of buying one

[@robbiehigdon1762]

All Mustangs love long tube headers, x pipe, and 3 inch exhaust, especially boosted. It makes them louder and faster.

[@scatpack1381]

Does the h-pipe have any drone?

[@steedaautosports]

Hi, There is a very slight amount, but going by the owner they say it is almost non-existent -Sam

[@davidrogers2939]

Awesome review would be great if you could have added the Borla Switchfire as the 3rd option..

[@VesselFitterguy]

Should of done the H-pipe first. Engine was already heated up. I've seen other dyno tests showing no difference in either regular X or H pipe.

[@steedaautosports]

We waited for cool down in between each test. Hope this helps! -Chris

[@nicholasborrelli7544]

That because there should be basically no difference....think about every car manufacturer with a "performance exhaust" like the Corvette. They say it adds what? 5hp? 10hp? To the crank.....it's negligible if the headers and cats are untouched AND there is no tune update. I don't believe the hype

[@elbarosa2084]

Love🎗🎗🎗

[@5.0bsessed]

Is this without a tune?

[@steedaautosports]

No tune! -Chris

[@outlawz4148]

I like that x pipe

[@DaSNoble]

Why play music over the dyno clips?

[@treycone1363]

What color is that

[@steedaautosports]

That color is called Grabber Yellow. Definitely eye-catching!

[@robertward553]

Cool.

[@JCTiggs1]

377 hp that is the lowest dyno pull I've ever seen for a 2018-2021. Coyote Gen 3's are pulling 410 to 425 depending on the dyno and tranny.

[@xGR1MxREAPERx]

Their dyno is one that won’t let it reach full speed. It is revving out and madding the dyno out so that’s why you can see on the dyno it’s at like 6700ish. Peak power is around 7100-7300. Which is where you would get another 30-35 hp. Autos are around 405-430 stock so this is normal for such low rpm.

[@JCTiggs1]

@@xGR1MxREAPERx Thanks for the info!

[@justanotherone685]

@@xGR1MxREAPERx idk, I just watched another stock gt dyno at 6500 rpm and it hit 408.6 hp.

[@xGR1MxREAPERx]

@@justanotherone685 I can make your car have 350 or 425 stock lol, ju St adjusting parameters on the dyno. Don’t look into that too much. Look at the end result after mods. You can check your power with 1/8 or 1/4 mile times and speeds easily. With a certain weight car and xxx horsepower it should run xx.xx times etc. if you do the research on these cars from 2018-2021 they typically dyno 385-410 stock auto and 395-425 stock manual.

[@ryancalhoun4671]

OEM sounds like a wet fart. H-pipe doesn't sound much better. X-pipe sounds mean Af. Great video

[@soulerflare7]

377 to 385 is actually 8 hp gain .

[@CR36111]

They don't even have 400 hp but advertised 460 HP and 450 HP wow

[@TRob_1964]

X pipe more down low grunt and definitely more HP on the dyno

[@kendallcroly3563]

x pipe.

[@draco2xx]

x pipe sounds better imo

[@johnterpack3940]

How can you call 6 HP "impressive"? That's nothing. Less than 2% difference. You can get that much difference between two dyno pulls without making any changes to the car. Even the 9 HP gain over stock isn't something you'd ever notice on the street or track. If you are building a car specifically to run wide open then it makes sense to choose the X pipe to go with all the other mods to maximize redline performance. On the street the only difference is the sound.

[@wooloongabba]

X pipe because race car