Active Autowerke F8X M3 M4 Signature Exhaust System includes Active F-brace Tip Color:Brushed Silver the Active-8 Tuning Box

the Active-8 Tuning Box

Previously the Atlas shock absorber upgrade was only an option with costly systems to defeat the dampening control system

Full dual pulley kit

Both upgrades are ethanol compatible

This puts less strain on the turbocharge rand maximizes performance

Active Autowerke F8X M3 M4 Signature Exhaust System includes Active F-brace Tip Color:Brushed Silver the Active-8 Tuning BoxNOTE: THESE ARE BUILT TO ORDER AND MAY TAKE UP TO 2 WEEKS TO BUILD. Active Autowerke is proud to announce the release of our Signature F8X M3 M4 Exhaust System. This system is the result of countless hours of R&D to obtain the perfect combination of performance and sound. Constructed of 100% 304 TIG welded stainless steel, we have created a modular exhaust system that will provide enough flow to support power levels way above the stock S55. This is a