Active Autowerke Valved Rear Exhaust - M340i / M440i w brush tips (11-089) 5018 slash-cut tips that reside behind

slash-cut tips that reside behind the rear passenger-side fender

Resulting parts are very lightweight and strong

It flows 46% more than stock

Active Autowerke has engineered the F8X Mid Pipe specifically for the F80 M3 and F82 M4 to improve exhaust flow by replacing the restrictive OEM mid pipe with a unique oval-shaped 3

Active Autowerke Valved Rear Exhaust - M340i / M440i w brush tips (11-089) 5018 slash-cut tips that reside behindThe Active Autowerke Valved Rear Exhaust for the M340i and M440i enhances exhaust note and performance while retaining BMW's stock valve control. Designed as a rear axle back replacement, this system addresses the overly quiet factory exhaust sound to deliver a deeper, more aggressive tone fitting the BMW 'M' badge. Made in the USA with 304 stainless steel construction Utilizes BMW's OEM valve actuator for optimized flow and resonance Low, deep sound