aFe ELITE 05-12 Porsche Boxster S (987.1-987.2) H6 3.4L 304SS Dual Cat-Back w/Dual Polished Tip ExhtaFe is proud to introduce the aFe ELITE cat back exhaust system for the 2005 2012 Porsche Boxster S (987. 1 & 987. 2) with H6 3. 4L engine with aFe dual tip assembly. In recent testing with the aFe dual tip assembly, this exhaust system resulted in a max gain of 29 horsepower and 40 lbs. x ft. of torque. aFe spent countless hours of R&D to develop the perfect balance of pure, race inspired performance and in cabin driving comfort and excitement of