Dundon GT3 Race Headers w/ Valved Side Deletes

Constructed from 321SS with tuned-length, stepped headers and flapped side connectors, this exhaust combination offers a 25whp peak increase for 991 GT3 at 8400rpm and 40lbft at 4300rpm and a 40whp increase for 991 GT3RS at 8500rpm and 40lbft at 4300rpm--with no ECU flash required. By understanding exhaust flow and resonance tuning, Dundon Motorsports developed this combination. The use of the the OEM center muffler and flaps allow for drone-free, quiet cruising and a glorious Porsche roar when on throttle! This setup is bolt on and can be selected with or without the exhaust flaps.

Weight of the system is lighter than stock by far. Stock is 86 lbs and the weight of the Race Headers and stock GT3 muffler flaps is 36lbs This is complete header flanges to the exhaust tips including ALL hardware, clamps, straps etc--a savings of 50lbs!

Race headers are for non-US, racing vehicles and off-road use only.