AA SC Replacement Belt - E9X C38-92 GEN 8/9 Level 1 E9X Replaces (not removes) secondary cats

Replaces (not removes) secondary cats for better flow and sound

and delivers noticeable gains in performance while maintaining catalytic converters that support emissions compliance

High-efficiency single displacement BOV takes place of two smaller plastic valves Large opening can handle maximum boost

Revolutionary NCC -Noise Cancelling Chamber

Increased horsepower and torque potential – More efficient exhaust flow supports higher power levels

AA SC Replacement Belt - E9X C38-92 GEN 8/9 Level 1 E9X Replaces (not removes) secondary catsBMW E9X C38 92 Level 1 Replacement Belt This is Replacement Belt for the Active Autowerke E9X level 1 supercharger kits. These Premium V Ribbed Belts are designed with aramid fiber loaded stock to provide the longest possible service life with the lowest possible noise characteristics. year 2007,year 2007 make bmw,year 2007 make bmw model m3,year 2008,year 2008 make bmw,year 2008 make bmw model m3,year 2009,year 2009 make bmw,year 2009 make bmw model