GrimmSpeed 02-05 WRX/04+ STi/04-08 FXT Downpipe 3in Catted
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. Our complete line of downpipes feature a high-flow, 300 cell catalytic converter, fully machined and contoured flanges and the option to add black ceramic coating. Whether you're racing time attack or to work and back, we've got the perfect downpipe for you.
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
Flanges Fully CNC Machined (Limited models only)
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!
This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov