GrimmSpeed Downpipe Catted (Black Ceramic Coating) - Subaru STI VA

USA's Finest Downpipe.

• Proudly made in the USA - Design, Materials and Fabrication
• Innovative 3-D Contour Flange (Limited models only)
• FARO™ Arm Designed - We are at the leading edge of new product design hardware
• O2 Bungs for factory sensor and aftermarket wideband AFR
• Divorced Wastegate for Optimal flow
• High-flow, 300 cell, metallic substrate catalytic converter
• GrimmSpeed Gaskets Included - A $40 Value!

A downpipe is one of the first modifications that should be done on your car, as the OEM downpipe contains two very restrictive catalytic converters. Replacing these with our single high-flow unit will dramatically improve performance potential while maintaining the use of a catalytic converter. Within our complete lineup of downpipes, you have the option to add a high-flow, 300 cell catalytic converter, fully machined and contoured flanges and black ceramic coating. Whether you're racing time attack or to work and back, we've got the perfect downpipe for you.