Active Autowerke F8X BMW M3 & M4 Equal Length Mid Pipe includes Active F - brace (11-055R)

Active Autowerke F8X BMW M3 & M4 Equal Length Mid Pipe includes Active F - brace (11-055R)Active Autowerke, a leader in BMW performance products for over 41 years, brings you the F8X BMW M3 & M4 Equal Length Mid Pipe. Engineered specifically for the F80 M3 and F82 M4, this patented solution (US Patent 11248511, UK and EU patent 3882441) addresses the uneven exhaust pulse timing caused by the S55 engine's unequal downpipe lengths. Corrects the nearly 1. 5 foot length difference between front and rear downpipes Eliminates the characteristic

Active Autowerke, a leader in BMW performance products for over 41 years, brings you the F8X BMW M3 & M4 Equal Length Mid Pipe. Engineered specifically for the F80 M3 and F82 M4, this patented solution (US Patent 11248511, UK and EU patent 3882441) addresses the uneven exhaust pulse timing caused by the S55 engine's unequal downpipe lengths.

• Corrects the nearly 1.5-foot length difference between front and rear downpipes
• Eliminates the characteristic 'weed eater' sound by equalizing exhaust pulses before mixing
• Utilizes patented sinusoidal crossover pipes to achieve a balanced 6-cylinder exhaust note
• Designed for exact fitment on F80 M3 and F82 M4 models

Features:

• Lighter weight than factory mid-pipe system
• Improved turbo spool response
• Enhanced low-end and mid-range power delivery
• Equal length design reduces pulsing exhaust noise

Please Note: It is strongly recommended that vehicles with catless (straight-through) downpipes use the resonator option with this equal length mid-pipe.