Grimmspeed 3in Catted Downpipe Limited Ceramic Black Coated Subaru WRX / STI / Forester XT / Legacy GT 2005-2017

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GrimmSpeed 08+ WRX/08+ STi/05-09 LGT Downpipe 3in Catted Limited w/ Ceramic Black Coating


A downpipe is one of the first modifications that should be done on your Subaru WRX and STI, as the OEM downpipe contains two very restrictive catalytic converters, killing the power potential of your car. Within our complete lineup of downpipes, you have the option to add a high-flow, 300 cell catalytic converter, fully machined and contoured flanges with beautiful brushed tubes and 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!

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.

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.


2008-2014 WRX

2008-2017 STI

2005-2009 Legacy GT (Manual Trans Only)

2009-2013 Forester XT

SKU: 7098

Vendor: GrimmSpeed

Additional information

SKU 7098
Carb Compliance No
Prop 65 Unknown
EPA Approved Testing
Weight 20.6 lbs
Dimensions 49.5 × 17 × 7.9 in