Weighs Less Than Half The Stock System Easy Installtion, Using Slip-Fit Connections And Factory Clamps Million-Mile Warranty Give your 928 the distinctive tone of a Norla Cat-Back? exhaust system. Featuring a patented straight-through, multi-core design and Aircraft-Quality, T-304 Stainless Steel construction the Borla® Cat-Back? system will really make your 928 scream. BORLA's Cat-Back? system promises maximum flow and power using ultra-smooth mandred bends and precision CNC maching for perfect fit. Comes complete with both primary and secondary mufflers. Learn More

The new Borla® cat-back systems for the 997 model is a perfect blend of exceptional performance and that exclusive Borla® tone. 915994 Cat-Back? features a full dual system which, thanks to the lightweight high quality austenitic stainless steel construction, is actually more than 10% lighter than the factory single muffler system. This 2 ¼" system is tuned for the non-turbo engine, boasting an impressive 325cfm greater air flow while generating solid double-digit horsepower numbers and torque gain numbers in the mid twenties. The 915994 system features four 3 ½" Intercooled, mirror polished stainless steel tips. The Borla® 915993 Cat-Back? system is similar, but features the 88mm round polished angle-cut tips (two per side). Cat Back Systems Now Available for both 3.6 and 3.8 Liter Engines!! Learn More

Weighs Less Than Half The Stock System Easy Installation, Using Slip-Fit Connections and Factory Clamps Million-Mile Warranty Give your Boxster® "S" the distinctive tone of a Borla Cat-Back? exhaust system. Featuring a patented straight-through, multi-core design and Aircraft-Quality, T-304 Stainless Steel construction. CNC machine for perfect fit. Comes with 3 ½" oval, angle-cut polished tips. Learn More

Weighs Less Than Half The Stock System Easy Installation, Using Slip-Fit Connections And Factory Clamps Million-Mile Warranty Give your Porsche® the distinctive tone of a Borla exhaust system. Featuring a patented straight-through multi-core design and Aircraft-Quality, T-304 Stainless Steel construction, the Borla system will really make your Porsche® scream. Borla's system promises maximum flow and power, using ultra-smooth mandrel bends and precision CNC machining for a perfect fit. Learn More

The new Borla® cat-back systems for the 997 model is a perfect blend of exceptional performance and that exclusive Borla® tone. 915994 Cat-Back? features a full dual system which, thanks to the lightweight high quality austenitic stainless steel construction, is actually more than 10% lighter than the factory single muffler system. This 2 ¼" system is tuned for the non-turbo engine, boasting an impressive 325cfm greater air flow while generating solid double-digit horsepower numbers and torque gain numbers in the mid twenties. The 915994 system features four 3 ½" Intercooled, mirror polished stainless steel tips. The Borla® 915993 Cat-Back? system is similar, but features the 88mm round polished angle-cut tips (two per side). Cat Back Systems Now Available for both 3.6 and 3.8 Liter Engines!! Learn More

The new Borla® cat-back systems for the 997 model is a perfect blend of exceptional performance and that exclusive Borla® tone. 915994 Cat-Back? features a full dual system which, thanks to the lightweight high quality austenitic stainless steel construction, is actually more than 10% lighter than the factory single muffler system. This 2 ¼" system is tuned for the non-turbo engine, boasting an impressive 325cfm greater air flow while generating solid double-digit horsepower numbers and torque gain numbers in the mid twenties. The 915994 system features four 3 ½" Intercooled, mirror polished stainless steel tips. The Borla® 915993 Cat-Back? system is similar, but features the 88mm round polished angle-cut tips (two per side). Cat Back Systems Now Available for both 3.6 and 3.8 Liter Engines!! Learn More