Exhaust COBB Tuning | Mitsubishi Ss 3″ Downpipe Evo X 2008-2015, Ralliart 2009-2015

The Trailing-End Flange Uses The Stock Donut Gasket And Factory Spring Bolts To Aid In Flex, Longevity And Proper Fitment. A Bespoke Cast 3″ Flat Flange Provides A True Mating Surface At The O2 Housing. These Features Provide An Improved Seal Compared To Other Methods, As Well As Reduced Noise.