Steeda S550 Mustang GT 5.0L Coyote 304 Stainless Resonator Delete X-Pipe (2015-2018)

23 Review(s)
$24.00 (9%)
Steedas 304SS Resonator Delete X-Pipe for your 5.0L, Coyote powered S550 Ford Mustang GT is the best way to improve sound and increase performance at minimal cost, all while losing up to 7 pounds of weight. The X design, with its smooth transition, creat
Part Number: 555 3610

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Steeda's 304SS Resonator Delete X-Pipe for your 5.0L, Coyote powered S550 Ford Mustang GT is the best way to improve sound and increase performance at minimal cost, all while losing up to 7 pounds of weight. The X design, with its smooth transition, creates more scavenging effect than traditional H designs for increased power at high RPMs and a race inspired exhaust note. With mandrel bent 2.5"diameter tubing, the X-pipe easily installs between the factory catalytic converters and the factory mufflers. It is also compatible with virtually all aftermarket axle back exhaust kits. The T-304 stainless steel mandrel bent tubing will not develop surface rust typical with 409 stainless or rust completely through like aluminized mild steel. The flush fit exhaust clamps allow for shortening of the X-pipe if needed and prevent exhaust leaks common with expanded end kits.

Note: Some 2018 and all 2019 GT models have integrated heat shields welded to the OE exhaust assembly requiring shortening 555 3610 X-pipe or removal of OE heat shield. Steeda's newly developed X-Pipe 555 3618 is direct fit for 2018+ models with OE heat shield.

Product Benefits:

  • X-pipe design improves exhaust flow over factory resonator and H-pipe design up to 20%
  • 304SS will not rust like inferior 409SS or aluminized steel pipes
  • Aggressive race inspired exhaust tone
  • Sheds up to 7 lbs weight
  • Does not require tune
  • 38" overall length 
  • Band clamps allow cut to shorter length

X-Pipe vs H-Pipe: Which Is For You?

CA Residents: Cancer and Reproductive Harm WARNING

Hi everybody Brian from here today to answer a very important question for you S550 owners to H-Pipe or to X-Pipe that is the question. Now we can understand the confusion because both of them look very similar to one another. They're both made of T 304 stainless steel. They both replace the OEM resonator both save a lot of weight off the middle of the car and both change the sound and add some performance to the car. So we're here to help answer and guide you toward which may be better suited for you. We'll start with the H pipe. The H Pipe will give you a little bit of a deeper sound. A little bit more of a muscle car sound. A little throatier, but not quite as a raspy up top. As we move on to the X Pipe that's we're gonna get your higher RPM raspiness and a real nasty growl as you get toward red line. As we referenced a moment ago, both of these are a replacement for the factory resonator. The tubing is the same size and we provide the clamps for a nice clean installation. Since these utilize the factory exhaust gives you your choice of any axle-back that you want so you can truly customize the sound of your S550. Now with regards to performance both of these are going to increase performance nearly equally the X Pipe will just slightly edged out the H Pipe in peak performance just by a little bit. So in all reality it comes down to the type of tone you're trying to get out of your exhaust and this brings us back to our original question. To H Pipe or to X Pipe. Which did you choose?
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Fitment & Features


Manufacturer: Steeda Autosports

Installation Information:

Level of Difficulty: Easy
Install Time: About 1 Hour
Tools Required: 3/8" Ratchet, 14mm Socket, 15mm Socket, 14mm Wrench, 15mm Wrench, Reciprocating saw, Jack, Jack stands, Wheel chocks, Safety glasses, Gloves
Print Instructions: Installation Instructions

Vehicle Fitment:

Fits Model Year: 2015, 2016, 2017, 2018

Customer Reviews

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Note: Some 2018 and all 2019 GT models have integrated heat shields welded to the OE exhaust assembly requiring shortening 555 3610 X-pipe or removal of OE heat shield. Steeda's newly developed X-Pipe 555 3618 is direct fit for 2018+ models with OE heat shield. Although the 555-3610 did fit after cutting it to make it shorter, would have been nice to know there was one made shorter. I did not read the full description, so my bad. Steeda maybe highlight on the webpage. As far as sound improvement I like what it did. As for installation was fairy easy. Took about 2 hours to install.
Did you find this helpful?  1 of 1 Found Helpful
Verified Buyer   from WV on 7/5/2021
My 2016 V6 Mustang
The S550 GT X-pipe sounds awesome on my car. We did have to modify it to fit but I have to tell you, this is the best sounding V-6 you will ever here.
Did you find this helpful?  1 of 1 Found Helpful
from Roseburg, Oregon on 4/30/2021
Bought to replace the resonator on mt 2014 50th Anniversary LE Mustang. Easy mod and as usual super quality. It also gave the exhaust a more aggressive note.
Did you find this helpful?  1 of 1 Found Helpful
from Ohio on 10/2/2020
Added nice sound
This addition to my 2015 50th Anniversary Mustang GT LE has given it a much better sounding exhaust note. Easy to install but I recommend a muffler shop. This is a good buy.
Did you find this helpful?  1 of 1 Found Helpful
from Gainesville on 9/1/2020
Awesome product
Paired this x-pipe with my Borla ATAK axle back on my 17 GT. This thing cold starts like a beast Every time. Sound amazing over 2.5-3k rpm but not where it is too loud or annoying
Did you find this helpful?  2 of 2 Found Helpful
from Greensboro on 8/4/2020
Steeda X-Pipe
Excellent product. Installed easily I under an hour, and the sound produced is exactly what is was looking for. Not sure my neighbors are enjoying it as much as me.
Did you find this helpful?  1 of 1 Found Helpful
from Massachusetts on 7/1/2020
Great Sound!
I wish I had gotten this when I had the Steeda Axle-Backs installed. It is a little louder inside the car, but not to the point where it is annoying or uncomfortable; you can still carry on a conversation and hear music.. As the revs start to climb, it sounds better and better. It sounds like this engine design should.
Did you find this helpful?  3 of 3 Found Helpful
Verified Buyer   from South Carolina on 4/8/2020
my expectations are blown away.
i've got a '17 GT. initially I installed an SLP loudmouth II and sounds nice, deep and perhaps 10 or 15% louder than stock. After a lot of reading i got this xpipe. The quality is great, material will hold perfect in this weather, the welds are beautiful, the tone is perfect to my taste. Volume is maybe 40% louder than stock. In my case I can barely hear a raspy note after 5k rpm, which is what i wanted. At least with this set up, i have NO drone at all, even at highway speeds. price/quality/results/smiles..... I could not be happier.
Did you find this helpful?  4 of 4 Found Helpful
Verified Buyer   from Cancun on 10/27/2019
Great quality and craftsmanship with one issue (for 2018+ models)
Everything about this product is top quality and is one of the few x-pipes that's actually made of stainless steel (most are made of cheaper aluminum, yet cost the same as the Steeda pipe). The sound is perfect in my opinion. Not too loud on the 2018+, just right, and it has more of an exotic exhaust note at higher rpm's, especially when compared to the traditional h-pipe cat-backs I've had in the past (there is still a nice deep tone at lower rpm's though). I'm so happy with the sound that I really don't have the need to remove the oem mufflers. My fuel economy has gone down but only because I love going through the gears and listening to the sound as the revs climb. No short shifting now! I haven't experienced any drone either. Now, the only negative about this piece is that it was originally designed for the 2015-2017's. The 2018+ models require a shorter x-pipe, at least 6- 8 , due to the location of the heat shields on the oem exhaust. We thought about cutting the x-pipe shorter but were worried it would have fitment issues,. so our only other option was to cut-through the heat shields and remove them completely. As others with 18+ GT's have mentioned, this will fit, but it definitely shouldn't require removal of the oem heat shields. Steeda needs to make a 2018+ version of this x-pipe asap. Other than that, I recommend this product. :)
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Verified Buyer   from Canada on 12/20/2018
Love it!
X-pipe came packaged very well and fast. Looks awesome and well built. I had it installed at a local muffler shop, took them an hour. Boy did this thing make my 2018 sound much better. This is a must do mod, sounds like a Mustang now!
Did you find this helpful?  9 of 9 Found Helpful
Verified Buyer   from Alabama on 10/23/2018
2015 Mustang GT Performance pack steeda resonator delete x-pipe
All i can say is WOW! i was worried about my roush axle backs sounding very raspy and not all the case, it has a very deep growl sound and pops and crackles which is awsome, sounds like a muscle car should. Definitely recommend this X-pipe from steeda over the other brand x-pipes resonator delete. I also feel improved performance on acceleration, feel more torque. Very happy with the product. Thanks steeda
Did you find this helpful?  4 of 4 Found Helpful
from Midland texas on 10/9/2018
Perfect on my non-active exhaust 2018 GT
Sounds better than the Roush x-pipe on my buddy's 2018 GT with non-active exhaust. Nice snarl/growl at low rpm but when you step on it it SCREAMS, even with the stock mufflers. Great quality, excellent price, couldn't be happier with the purchase!
Did you find this helpful?  8 of 8 Found Helpful
from Midlothian, VA on 9/30/2018
Steeda does it again!
If you are looking for a deep growl without breaking the bank, this is a great place to start. You can spend $500+ on an axle back or start with this. Amazing quality and sound. You will not be disappointed.
Did you find this helpful?  9 of 9 Found Helpful
from Myrtle Beach on 7/19/2018
2018 Black Performance Pack 1
I just installed this on my 2018 GT. I love the sound! I also feel a little more pep. I have the active exhaust option, and this is a perfect match for it. The only downside, was the 2018 has heat shields where the cuts are made. We got around this. This X pipe is a good quality pipe and as very reasonably priced.
Did you find this helpful?  10 of 10 Found Helpful
from Lewes, Delaware on 6/25/2018
2017 Gt PP 2.5 inch x pipe
Part has excellent build quality and welds, installation was done with very basic hand tools and a battery powered saws all. It took about 1/2 hour on jack stands and corrected the exhaust tip angle in rear valance. I am trying this x pipe with stock mufflers for now and it sounds great! No drone or adverse side effects. The first part of many future Steeda purchases! The part came faster than expected and fit perfect! Steeda was very easy to use and no drama!
Did you find this helpful?  7 of 7 Found Helpful
from DesPlaines Illinois on 6/22/2018
I bought the x pipe hoping for a tad bit deeper and a tad bit louder exhaust tones and this did it 10/10 rating from me. The x pipe is on a 2018 GT with the 10 speed auto.
Did you find this helpful?  11 of 12 Found Helpful
from Cartersville ga on 6/12/2018
Awesome Product
Awesome Product and easy install. Really woke up my axel backs Highly recommend this product
Did you find this helpful?  4 of 4 Found Helpful
from San Antonio tx on 5/8/2018
Bought this x-pipe for my 18 Mustang. Love the added tone in Normal and Sport mode. Screams in upper RPMs, throaty down low. Quiet mode is still quiet.
Did you find this helpful?  22 of 22 Found Helpful
from Cleveland, OH on 3/21/2018
Aggressive sound
In love with the growl, cold start sounds beast but when you rev it, the best for a cheap price.
Did you find this helpful?  9 of 9 Found Helpful
Verified Buyer   from Texas on 3/17/2018
Just what I was looking for
Great quality, great sound. Paired with a muffler delete, this is the perfect mustang tone. It has a low rumble/growl when cruising, but the gates of hell open when you get on it. Thanks for the great service/product, Steeda.
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Verified Buyer   from Jacksonville on 3/3/2018
Great product
Just got the X pipe installed and I also have custom muffler deletes. This thing sounds incredible and screams at higher rpms, and has a quiet rumble when driving regularly through the streets. The exhaust shop said it was one of the best quality pipes he's seen in a while. Great product and fast free shipping!
Did you find this helpful?  11 of 11 Found Helpful
from Tampa on 2/24/2018
Great Pipe, cant beat the price!
Wonderful fit on the 2018 Mustang GT. Half hour install. Has a very nice look, the Steeda S is a nice touch. Put this on a 6 speed manual 5.0 with non-active exhaust and this was exactly the sound I was going for. Got a little louder and a littler deeper and has that nice V8 crackle. Look forward to getting more Steeda products on my new Stang. 5 STAR!
Did you find this helpful?  15 of 16 Found Helpful
Verified Buyer   from Escanaba, MI on 2/22/2018
Bang for the buck
Great product! Loved the aggressive tone it gave my car. Highly recommend.
Did you find this helpful?  2 of 2 Found Helpful
Verified Buyer   from on 2/21/2018
There are no reviews for this product!

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