aFe MACH Force-Xp 3.5in 304 SS Cat-Back w/Polished Tips 15-18 BMW X5 M (F85)/X6 M (F86) V8-4.4L S63 fits_1997-2012`Chevrolet`C5 0L L6 (E90/92)

0L L6 (E90/92)

4L (tt) Red Edition

Add dyno-proven performance and an aggressive exhaust sound by replacing the constrictive factory mufflers and tubing with this Takeda 2-1/2" open y-pipe and mid-pipe

creating problems in certain circumstances such as up-hill starts

aFe MACH Force-Xp 3.5in 304 SS Cat-Back w/Polished Tips 15-18 BMW X5 M (F85)/X6 M (F86) V8-4.4L S63 fits_1997-2012`Chevrolet`C5 0L L6 (E90/92)aFe MACH Force Xp 3. 5in 304 SS Cat Back w Polished Tips 15 18 BMW X5 M (F85) X6 M (F86) V8 4. 4L S63 Add power, sound and unique style to your BMW X5 X6 M with this cat back system which produced gains of up to +20 horsepower and +33 lbs. x ft. torque as measured on our in house dyno. Dual 3" to 2 1 2" mandrel bent, brush finished 304 stainless steel tubing keeps exhaust flowing smoothly for power gains you can feel. Designed with a transverse, high