Active Autowerke F8X M3 M4 Signature Exhaust System includes Active F - brace - Carbon Over Black Chrome (11-045CBC) 1703 5" Horizontal Flow Core is

5" Horizontal Flow Core is rated for 850 WHP and the perfect fit for your custom high-performance intercooler

To top it all off

Optimized launch control

This is the most cost effective cable to modify when making your own CAN adaptor harness for your aftermarket EFI system

the Touring Edition features AWE's patented drone-canceling solution

Active Autowerke F8X M3 M4 Signature Exhaust System includes Active F - brace - Carbon Over Black Chrome (11-045CBC) 1703 5" Horizontal Flow Core isThe Active Autowerke F8X M3 M4 Signature Exhaust System is engineered to enhance performance and deliver a distinctive exhaust sound. Crafted from 100% 304 TIG welded stainless steel, this modular turbo back exhaust supports power levels well beyond stock specifications. Mandrel bent 304 stainless steel construction with full TIG welding Single 3. 5" turbo back pipe design improves exhaust scavenging and velocity Flow efficient Y pipe design promotes