Fabspeed Porsche 991.2 GT3 / GT3 RS Side Muffler Bypass Pipes (2017-2019) Select Valve Configuration:Valved Designed to be used with

Designed to be used with and without stock exhaust tips

Our final design of the Supersport X-Pipe saw an increase of 13 whp (wheel horsepower) and 11 ft/lbs of ft-lbs of torque at 6400 RPM and an impressive 27 whp (wheel horsepower) and 37 ft/lbs of ft-lbs of torque at 3800 RPM

The GT3 Race header system was engineered with Burns stainless proprietary X-design parametric engine/ exhaust design computer program

If not properly calibrated

Caveat Emptor- buyer beware Fabspeed TRUE X pipe makes up to +12HP more than factory Porsche H pipe tips and +12 more than Chinese X pipes being mass marketed and Spammed by SOUL Performance and many other companies

Fabspeed Porsche 991.2 GT3 / GT3 RS Side Muffler Bypass Pipes (2017-2019) Select Valve Configuration:Valved Designed to be used withOptimized 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. Great Britain Imported Aerospace grade valves along with the addition of O2 bungs, Fabspeed's Side Muffler Bypass Pipes provide the ultimate street and track solution for the 991. 2 GT3 GT3 RS. Prefect upgrade for any Street Driven GT3