Grimmspeed Catted Downpipe (08-14 WRX & 2008+ STI)
Shipping FREE shipping on orders over $200.
Black ceramic-coated finish option
304 stainless steel construction
1/2" thick 3D contour flanges
3" piping diameter
3D CAD designed to determine the contours and clearance from the firewall
Divorced wastegate design for optimal flow
Designed with a secondary O2 bung for those adding a wideband O2 sensor
FARO arm design
Built-in high-flow 300-cell metallic substrate catalytic converter
Expertly TIG-welded
Includes new exhaust gaskets and hardware included for the installation
Made in the USA
