Active Autowerke F87 M2 Competition Signature Exhaust System includes Active F - brace (11-051C) 40080 testing proves that they are

testing proves that they are no more powerful than the factory coils that are found on 1

360 FWHP on E85 naturally aspirated

Fits Both Left and Right Side of Vehicle

69 WHP and torque increasing from 232

Active Autowerke F87 M2 Competition Signature Exhaust System includes Active F - brace (11-051C) 40080 testing proves that they areActive Autowerke presents the Signature F87 M2 Competition Exhaust System, engineered through extensive R&D to balance performance and sound perfectly. Constructed from 100% 304 stainless steel with TIG welding, it supports power levels significantly above the stock S55 engine. Mandrel bent 304 stainless steel construction with complete TIG welding Flow efficient Y pipe design with a true 3. 5" turbo back single midpipe Adjustable 90mm double walled