Tomei Unequal Length Exhaust Manifold Subaru Turbo Models (inc. 2002-2013 WRX / STI)

Tomei Unequal Length Exhaust Manifold Subaru Turbo Models (inc. 2002-2013 WRX / STI) The Tomei 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. GDB C-F Features - Reduced curves for improved efficiency at high RPM for improved performance - Tomei tested all pipe diameter and found the best combination of 38mm to 42.7mm with a 42.7mm support pipe. - Retained factory style equal length design with test best performance for this model - Dual support pipe included in this kit GC8/GDB A/B 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 heat proof tape - Instruction Manual and sticker