Description
Active Autowerke is proud to unveil the Signature F8X M3/M4 Exhaust System. Designed from the ground up, this full exhaust system is the result of extensive R&D to offer the perfect blend of performance, sound, and craftsmanship. Built using 100% TIG welded 304 stainless steel, it features a modular design that offers superior flow to support power levels well beyond those of the stock S55 engine.
This system includes a variant of our single midpipe and offers an optional equal-length midpipe for those seeking our distinctive exhaust note. Unlike the dual-pipe design of the stock S55 midpipe, which often results in unpleasant sound and turbo lag, our setup utilizes a single 3.5" pipe immediately following the downpipes. This enhances exhaust scavenging, increases exhaust velocity, and results in quicker spooling, more power, and a smoother, more refined exhaust note.
With reduced back pressure and a large single-pipe design, the Signature Exhaust System maximizes exhaust flow, making it capable of handling significantly higher power levels. Whether your car is stock or highly modified with turbo upgrades, this exhaust system is engineered to outperform, offering both high-flow efficiency and impeccable build quality. Made in the USA, every aspect of this system is optimized for performance, fitment, and durability.
Key Features:
- Mandrel-bent 304-stainless steel construction
- Completely TIG welded (no MIG welding)
- Flow-efficient Y-Pipe design for maximum exhaust flow
- Adjustable 90mm double-walled exhaust tips for perfect fitment
- True 3.5" turbo-back design
- Compatible with OEM valve motors
- Designed for both stock and highly modified engines
- No permanent modifications required
- Manufactured in-house at Active Autowerke’s Miami, FL facility
- Includes Active F-Brace for additional chassis reinforcement
Fitment:
- BMW F80 M3
- BMW F82 M4
