Fabspeed 991.2 GT3/GT3 RS Side Muffler Bypass Pipes (17+) (FS.POR.9912GT3.SMBV) 1637 Designed to reduce turbo spool

Designed to reduce turbo spool time and improve power delivery over stock downpipes

The built-in high-speed processor greatly improves throttle signal response time

Constructed in the USA

The Active Autowerke Simon 2 Software Flashing Cable connects your computer to your BMW E46 for data logging and tuning purposes

Fabspeed 991.2 GT3/GT3 RS Side Muffler Bypass Pipes (17+) (FS.POR.9912GT3.SMBV) 1637 Designed to reduce turbo spoolOptimized design that replaces the heavy and restrictive factory GT3 side mufflers for improved exhaust flow, increased dynamic sports car sound and huge significant weight savings. Utilizing super premium Helical U. K. Aerospace grade valves along with the addition of O2 bungs, Fabspeed's Side Muffler Bypass Pipesprovide the ultimate street and track solution for the 991. 2 GT3 GT3 RS. Prefect upgrade for any Street Driven GT3 touring, GT3RS, Gt3 PDK