This Bell Stainless Steel Sports Exhaust for the MK1 and MK2 Spitfire consists of the "Y" Pipe, and two rear Sports Mufflers. This system can be connected to the Standard MK1 Spitfire Front Pipe (sold separately) The Original MK2 Spitfire Header, or the Bell Stainless Steel 4:2:1 Premium 304 Stainless Header, (sold separately). We do recommend the purchase of the installation kit BSIK1 UPS additional Handling Charge $36