This completely re-designed performance exhaust system was engineered specifically for your 70-8/74 240Z/260Z, when you are installing, or have already installed our 15-6012 header system (HEADER NOT INCLUDED). The connections between the header and pipe 1, and then pipe 1 to pipe 2, are flanged. The "turbo" style muffler ("turbo" refers to the designed flow of the exhaust through the muffler, not to a turbocharged engine) is connected to the rear long pipe by a standard clamp. Includes chrome exhaust tip. This complete system replaces all pipes and mufflers from our header to the tailpipe. The long piping is aluminized for long life and corrosion resistance. This is the ONLY exhaust system that will work properly with our 6-into-1 header system.
All performance exhaust systems, no matter the manufacturer or type, will be louder than the stock exhaust system. This is an unavoidable consequence of reducing back pressure and therefore increasing performance. This is especially true upon acceleration when exhaust pressures are at their highest. This premium system, with a "turbo" style muffler, is no exception. This type of muffler, however, was designed to limit the level of sound, especially when the engine is not being pushed. Therefore while it will be significantly louder under heavy acceleration, especially when connected to a header as opposed to the stock exhaust manifold, it should only have a pleasing "low rumble" tone during normal operation. Please call us if you have any questions.