aFe Power's introduces the "Race Only" Elite Twisted Steel headers for the2013-2014 Porsche Cayman S/Boxster S (981) with the H6-3.4L engine. These headers are 100% TIG-welded and constructed of near equal length mandrel-bent, 1-7/8",16-gauge 304 stainless steel tubing with thick flanges to ensure a leak free seal. The smooth curves and increased diameter of this header helps remove restriction and keeps exhaust gas flowing smoothly for improved performance and durability. The headers includes all components are supplied for a hassle-free installation with no modifications necessary. Twisted Steel Race Series Long Tube Headers Porsche 911 Carrera (996) 02-04 / Carrera S/4S (997.1) 05-08 H6-3.6L/3.8L Porsche 911 Carrera (996) 02-04/Carrera S/4S (997.1) 05-08 H6-3.6L/3.8L