Developed for the BMW X5, this Billy Boat Performance Exhaust axle back system is precision crafted using 100% T304 stainless steel. With CNC mandrel bent 2.5” throughout the entire system along the latest in resonance control technology, B&B’s proprietary Purge Resonance Technology or PRT as it is known, you are able to have a mild exhaust note at cruising speeds yet a forceful note on aggressive driving. This low restriction muffler allows for quicker acceleration and increased horsepower and torque. These results have been confirmed by the chassis dyno and by our customers. A pair of 4” round double wall tips gives the X5 a bold, distinctive look.
No engine management sensors are moved or altered therefore this system is 50 state emissions legal and is backed with their limited LIFETIME warranty.
This Part Fits the Following Vehicles