aFe MACH Force-Xp 3 IN to 3-1/2 IN 409 Stainless Steel Cat-Back Exhaust w/ Black Tip (49-43076-B) _Alternator_and_Crank_Pulley Active AutoWerke Performance Software Tune

Active AutoWerke Performance Software Tune (Part 16-019) is designed to unlock the potential of the BMW N54 twin turbo engine in the BMW 1M without compromising daily reliability

Ball And Socket Joint Design Allows For 360 Degrees Of Rotation Between Tachometer And Clamp To Accommodate A Variety Of Bar Orientations And Installation Points

The improved airflow created by addition of the exhaust is verified by the significant dyno HP increase

and provide a no-compromise solution for spirited daily driving

resonant exhaust sound that is both aggressive and refined

aFe MACH Force-Xp 3 IN to 3-1/2 IN 409 Stainless Steel Cat-Back Exhaust w/ Black Tip (49-43076-B) _Alternator_and_Crank_Pulley Active AutoWerke Performance Software TuneMach Force XP 409 SS Cat Back Exhaust System with Single Side Exit (49 43076 B) by aFe. Exhaust System Type: Cat Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 3" to 3. 5". Exhaust System Sound: Aggressive Loud. Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Mach Force XP Cat Back Exhaust System. aFe dyno tests every system for maximum gains, and constructs