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  1. Exhaust Options for '17 GT Convertible - advice on loudness in person.

    Hello folks, I've read just about every thread regarding Borlas, Corsas, and other brands' catback options. Haven't been able to get a concrete direction to go with my upcoming exhaust upgrade. I have a '17 GT Premium Convertible (non PP). Everything is stock - exhaust is my first upgrade/mod...
  2. NEW Roush Active Axleback Exhaust - Lethal Performance

    Hey, All! Roush Performance just released their new Active Axle-Back Exhaust for 2018-2023 Ford Mustang GT’s! This system consists of a high quality, T304 Stainless Steel construction, an easy installation, and is back with Roush’s Limited Lifetime Warranty. Aggressive race-inspired...
  3. Virginia SOLD

    SOLD
  4. UP TO 40% OFF XForce Exhaust PLUS Spring Savings! - Lethal Performance

    Hey all! XForce just released their MOVING SALE + SPRING SAVINGS Sale for the entire month of March! Throughout the entire month of March, you can save up to 40% on select XForce Exhaust Systems, including various systems for S550 Mustang GT, Ecoboost, and V6, along with Focus ST and RS...
  5. Corsa Performance Track Series Axle-backs SALE at Lethal Performance!!

    Starting today through 8/22, save 20% on the Track Series Axle-back systems from Corsa! (NO CODE NEEDED ON THE WEBSITE) Ready to grab a set? Check it out --> Corsa Track Series Exhaust Of course, if you guys have any questions, feel free to reach out!
  6. Lethal Performance has plenty Corsa Performance systems IN STOCK !!!

    From systems for the Explorer ST to the Quad Tip Xtreme systems for the 11-14 Coyote, we are STOCKED UP on Corsa systems here at Lethal Performance! Ready to grab a set for your vehicle? Feel free to shoot us a message or give us a call at 561.753.8105 | 877-2LETHAL
  7. North Carolina Steeda Axle Back 18-21 GT $275

    For sale ($275) I have a Steeda Axle back kit I purchased in the spring of this year. I would estimate I put between 10 and 12k miles on this exhaust. It sounds nice and aggressive, doesn't have any offensive highway drone. 304 stainless, looks nice even after being under the car and driven...
  8. Upgrading axle to catback, worth it?

    After 1 year it has come to my attention that my car was fitted with a roush axle-back instead of a catback by accident…. Is it worth sourcing or making the missing pipes and having these replaced in terms of performance, or is it really not that much of a difference? I got an EB with lund...
  9. WAY too much drone with SLP LM2, and Flowmaster Scavenger X-pipe

    I've had the SLP Loudmouth II for a few years now. Just had the X-pipe installed today. Drone is INSANE between around 1900-2500rpm. Like a drone hotbox inside the entire cabin. Cracking the windows would help with the SLP's alone, but now it's horrible. Sounds very good above that range...
  10. Aren't These Axle Backs the Same?

    I've been looking at these axle backs and I noticed they all look exactly the same but they list the construction grade slightly different. 1. 100% T304 Stainless Steel These vendors claim 100% T304 construction Part #12145FLT...
  11. Recent P0430 Code on Mustang V6 2015

    Hi, last friday a CEL popped up. P0430 code (Only one). P0430 Catalyst System Efficiency Below Threshold (Bank 2). I have no mods (stock cats, no CAI, no headers), Ran only on stock Tune. Only "mod" is a Roush AxleBack. I cleared the code and added a "cat cleaner" additive. Today, the light &...
  12. URGENT suspension question, help please

    All, I have a '19 Bullitt. It had an evap code, they replaced the sensor, which included them having to completely remove the rear axle, etc. Then it was slightly steering right at straight steering wheel. Brought it back, they said the back was tad out of alignment possibly after the axle being...
  13. 2015+ Catless Droneless Exaust Setup? (Stock Headers)

    I currently am running MAK Performance cat deletes and a Ford Performance by Borla sport cat back (x pipe and Borla sport axle back). Its a little bit quieter than an x pipe and muffler delete but I want it louder. With my setup now, I have no drone and would like to keep it that way, or at...
  14. Roush Axle back Drone v6 2015

    I have a 2015 v6 only mod is the Roush AB. Everything else stock. It drones a lot. I love the sound and the loudness of it, so changing setup isn’t an option for me. But while cruising on highways it gets very annoying. It feels like a sub-woof blasting medium to high level. It rattles my whole...
  15. V6 Axle Back Drone

    I have a 2015 v6 only mod is the Roush AB. Everything else stock. It drones a lot. I love the sound and the loudness of it, so changing setup isn’t an option for me. But while cruising on highways it gets very annoying. It feels like a sub-woof blasting medium to high level. It rattles my whole...
  16. $SOLD 2015-17 Corsa Touring Axle-Back Exhaust with Black Tips 14329BLK For Sale

    For sale. Fits 2015-2017 Mustang GT. 10,000 miles installed November 2018. $750 OBO. Glenn.
  17. H-Pipe, MBRP Axle-Back

    Hi all, I've been trying to fine tune the sound of my 2018 GT, and I can't quite seem to find what I like the most. I started with simple MBRP axle-backs with my stock resonators. Loved it, but wanted a hair more growl and "deepness" in the exhaust, so I went with an H-pipe, and now my car is...
  18. Steeda Aggressive Tone Axlebacks

    Anyone running Steeda Agressive exhaust? I’m trying to here a few more videos than the ones on YouTube. Thanks.
  19. Utah Pypes 3 inch Pype Bomb Axle Back - Stainless Tips, 2018-2020

    Only used for about a week. Sound was deep and throaty, but the volume level was just too much for me. Drone wasn't bad at all though. $250 shipped to lower 48. Includes all original packaging and instructions.
  20. White 19 GT C/S Borla Black Tips or Chrome?

    I did a Ford Performance X pipe res delete at first. The stock mufflers still sound good for stock but I want more growl. I decided to go with the Borla S Type axle back from here after about a month of forums and videos. Help me pick between black or chrome tips! My GT is Oxford White!


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