Rev9 2pc Valved Side Muffler Bypass Pipe for Porsche 911 991 GT3 RS 911R 14-19 A8 June/12-14 model

June/12-14 model

·         Koyo Japan 6204Z Bearing To Ensure Smooth Piston Travel

Idle: 85 db

CLK350/CABRIOLET 3

Rev9 2pc Valved Side Muffler Bypass Pipe for Porsche 911 991 GT3 RS 911R 14-19 A8 June/12-14 modelApplication: Porsche 911 991 GT3 GT3 RS 911R 14 19 FlowMaxx Valved Side Muffler Bypass Pipes for Porsche 991. 1 991. 2 GT3 GT3 RS models are equipped with valves offers the capability to produce an aggressive exhaust note under acceleration, and a more quiet tone for city driving. When cruising on the streets the valves are closed and produce a deeper exhaust tone. At wide open throttle the valves will open, producing a unique rich exhaust tone.