OFF ROAD USE ONLY!!!!!!!!! The TSP 1-7/8" long tube headers for C6 Corvettes offer the best bang-for-the-buck of any C6 long tube headers on the market! Why spend $900 or more on the pricier stainless steel long tube headers on the market to make the same power? These 340 stainless steel headers offer gains of over 25 RWHP when combined with our TSP 3" off-road x-pipe! These are the perfect headers for anyone looking for huge power potential! 304 Stainless Steel Mandrel-bent 1-7/8" primaries to ensure high exhaust flow rates Welded O-ring port seals milled flat to ensure a leak-free installation Collector design provides a smooth transition to your exhaust system Our headers are designed to be a slip-fit connection with our TSP 3" off-road x-pipe. **DOES NOT INCLUDE ANY CONNECTION PIPES OR X-PIPE TO FIT YOUR FACTORY EXHAUST!