Limited: For those looking to take the finest downpipe one step further and wring out every last ounce of performance, we offer our 'Limited' line of downpipes. Limited downpipes use flanges made of the very same 1/2" 304L Stainless material, but are fully machined with recesses for each tube as well as a beautiful 3D contour to smoothly transition the irregular shape of your internal wastegate outlet into our divorced tube for tighter boost control. In addition to the machined flanges, limited downpipe tubing material has a brushed finish, for a more uniform, refined appearance.
Features:
• 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!
Note: Once you have added our downpipe to your vehicle, you must be tuned. Replacing your factory catalytic converter sometimes causes a ‘cat converter efficiency’ check engine light. You can either use tuning to delete this CEL or you can use a mechanical fix. GrimmSpeed aftermarket downpipes modify OEM emissions control devices and are intended only for off-road racing applications.
Fitment: Fits 2002-2007 WRX, 2004-2007 STi, & 2004-2008 FXT
Beefcake Racing is an Authorized Dealer for GrimmSpeed, call 1-855-827-7223, 9am-9pm EST
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov