aFe MACH Force-Xp 3-2.1/2in SS Axle-Back Exhaust | BMW X1 (15-21) (49-36349-B) Select Tip Finish:Polished the Bilstein B4 OE Replacement

the Bilstein B4 OE Replacement Shock Absorbers feature a monotube design that ensures consistent damping performance

Lab-tested and race-proven to ensure consistent performance in demanding conditions

Precision fit for multiple BMW models

while the compatibility with lockable quick-release systems provides convenience and safety during track days

and provides a guaranteed increase in horsepower and torque

aFe MACH Force-Xp 3-2.1/2in SS Axle-Back Exhaust | BMW X1 (15-21) (49-36349-B) Select Tip Finish:Polished the Bilstein B4 OE ReplacementThis axle back exhaust system is constructed of 3 IN 2 1 2 IN mandrel bent 304 stainless steel tubing for maximum strength and durability. This system features a high flow 304 stainless steel polished muffler, producing a mild sound. The muffler has a polished finish for ultimate corrosion resistance. Finishing off this exhaust system are dual 4 IN diameter black 304 stainless steel clamp on exhaust tips. The tips features a laser etched aFe POWER