This is the GrimmSpeed Limited Catted Downpipe. This downpipe is the result of countless hours invested in research and development to provide the performance consumer with a quality product guaranteed to deliver performance. This is a direct replacement of the OEM downpipe that is highly restrictive and leaves much room on the table for improvement. The GrimmSpeed unit combines smooth bends and a larger piping diameter to remove as much turbulence from the exit path of the turbocharger which will add more horsepower, and more torque while reducing the turbo lag.
DETAILS:
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
LIMITED FEATURES:
Flanges designed with recesses for each tube
3D contour to smoothly transition the irregular shape of your internal wastegate outlet into the divorced tube for tighter boost control
NOTE:
Tune required for optimal performance