FabSpeed Porsche 996 GT3 Muffler Bypass Pipes (1999-2005)



Lighten the rear of the vehicle while adding aggressive Supercup-style sound by replacing the heavy factory mufflers with straight-through tubes.


These muffler bypass's will make your GT3 a lot louder and more aggressive. Expect a deep growling tone with minimal cabin drone.


On the dyno we saw gains of 11 whp and 7 ft/lbs of tq. These gains are carried throughout the RPM band.


  • Fits all Porsche 996 GT3 vehicles (1999-2005)
  • Increases horsepower and torque by 11 whp and 7 ft-lbs for improved throttle response
  • Saves 50 lbs from the rear of the vehicle
  • Comes with stainless steel polished tips
  • Used by many Rolex Grand Am race teams as well as PCA/POC and HPDE drivers
  • Constructed from mandrel bent T304L stainless steel
  • Simple DIY bolt-on installation, no cutting or welding required
  • All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty