Fabspeed Porsche 996 GT3 Muffler Bypass Pipes (1999-2005) Muffler Bypass Pipes This will mimic the sound

This will mimic the sound characteristics of the Fabspeed Tips without valves

These equal length performance headers improve exhaust flow and sports car sound and fit both 458 Italia Coupes and Spiders worldwide

You must fill out and include a copy of the ECU Information form along with your ECU upon sending it in

When it comes to a high performance vehicle like the 996 GT3

Fabspeed Porsche 996 GT3 Muffler Bypass Pipes (1999-2005) Muffler Bypass Pipes This will mimic the soundHP: +11 TQ: +7 WT (lbs): 50 Lighten the rear of the vehicle while adding aggressive Supercup style sound by replacing the heavy factory mufflers with straight through tubes. SOUND: These muffler bypass's will make your GT3 a lot louder and more aggressive. Expect a deep growling tone with minimal cabin drone. POWER: On the dyno we saw gains of 11 whp (wheel horsepower) and 7 ft lbs of ft lbs of torque. These gains are carried throughout the RPM band.