American Racing Bottle Neck Eliminator Kit
Increase horsepower and torque in your 2015-2018 Mustang GT with a high quality set of longtubes from American Racing Headers! ARH set the standard for quality in the exhaust world with their top notch products. This longtube header kit features 1 3/4" primaries to provide maximum flow over the factory manifolds. The headers flow into a catalytic X-pipe that bolts to aftermarket cat backs. This X-pipe eliminates the small 2 1/4" restriction at the aftermarket cat back inlet. The fit and finish of this American Racing Headers kit is second to none!
American Racing Headers proudly makes all of their products in the USA. This 2015-2017 Mustang GT bottle neck eliminator kit is constructed entirely with U.S. made 304 stainless steel tubing. These headers start off with 3/8" thick flanges with tig-welded and hand ported inlets. The 1 3/4" primary tubes are all one piece design for 100% leak-free performance. These primary tubes flow into the included 3" catalytic X-pipe. This combination with your aftermarket cat back will maximize flow, horsepower, and torque!
This exhaust kit includes a high flow catalytic X-pipe. The catalytic converters in this kit are 49 state legal and will NOT pass California emissions testing.
-This kit is for aftermarket cat backs only! You will have to cut a small section of the aftermarket cat back inlet off to eliminate the restriction.
-ARH recommends reusing factory gaskets or replacing with Ford OEM set.
-Installation of long tube headers will require custom tune to prevent damage to your vehicle. If you already have a custom tune on your Mustang, please consult with your tuner prior to installation and operating your Mustang.