Tomei Expreme Unequal Length Exhaust Manifold - WRX 2002-2014 - STI 2004-2019 - More

Includes Catalytic Converter : No Installation Hardware Included : Yes Manifold Design : Non-Equal Length Piping Coating : No Piping Flex Joint : No Piping Material : 304 Stainless Steel SUPERSEDES PART NUMBER: TOME-193082The Tomei Expreme exhaust manifold for the Subaru WRX improves the exhaust performance by improved design and increased efficiency. The result is a unique sounding exhaust with improved response and power designed for the EJ20 engine. Features High efficiency 4-1 design for improved power and response Tomei developed un-equal length for improved turbo performance Increased pipe diameter to 60mm over standard 42.7mm for greater flow Unequal length retains the unique boxer sound Kit includes Exhaust Manifold Bolts, gaskets and header wrap Instruction Manual and sticker PREracing.com note: From our experience this 4-1 header design makes the MOST power of any header design on the market for the Subaru including the equal length 4-2-1 design. We have seen up to a 15whp peek gains over the Cusco and Perrin equal length headers.