Ford Mustang Exhaust System, Off -Road (2005-2009)
- Improves the power, fuel efficiency, and sound of your Mustang
- Works with 2005-2009 Ford Mustang GTs
- Requires ROUSH® Rear Fascia for 2005-2009 Mustangs (part #401271)
- More aggressive exhaust sound
- Made of T-304 stainless steel for resistance to corrosion and staining
- Mandrel-bent tubing for increased air flow
- Bolt-on axle-back exhaust system attaches to the factory midpipes and requires no cutting
- Part #401339
This Ford Mustang Exhaust (Off-Road System) from ROUSH® fits 2005-2009 models.
This is a Off-Road system that produces a loud, throaty-sound. The exhaust system also improves the power, fuel efficiency of you car.
This Ford Mustang exhaust kit is made of T-304 stainless steel, providing for resistance to corrosion and staining and features exhaust tips, mufflers, and required hardware for installation. The exhaust tips of this system fit (and require) the ROUSH Rear Fascia for 2005-2009 Mustangs (part #401271). This bolt-on axle-back exhaust system attaches to the factory midpipes and requires no cutting.
The term "Off-Road" for these exhaust kit, mean that the sound level of this system are above the levels legally required limits for production vehicles. For a system that is below the legal sound limit, a "Legal" exhaust system (part #401338) is also available. If you already have the "legal" version of this exhaust on your car and you would like to upgrade to the "off-road" system, you can purchase the mufflers of this system separately under part #401340 (this package doesn't include the exhaust tips). You can purchase the off-road mufflers for use with stock Mustang rear fascia with part #401423.
Mustang: 2009, 2008, 2007, 2006, 2005
- Difficulty: Novice
- Time: 1 hour
- Required Tools: Garage tools
- Download instruction manual
(1 reviews) >> Write a review
By Steve Stevens September 30th, 2012
Proud owner of a supercharged 07 Mustang with the off road exhaust that was installed at the dealership. Well, at 60 to 68 mph ya need to speak up if you want to be heard over the drone. At 70 it calms down to an acceptable level. Love the car and the sound....but really, if you do highway driving do yourself a favor and go for the legal exhaust.. I have put up with it for 23k miles and am going to change it soon. Love the car, the guys at ROUSH are trying to warn you by saying off road. Listen to them, they know what they are saying. Steve, 2007 Roush Roadster