GrimmSpeed now only offers catted downpipes for the 08+ Subaru WRX, STI, Legacy GT, and Forester XT. These downpipes feature 3" 16ga 304L Stainless Steel tubing and use 1/2" flanges for superior strength and durability. Both downpipes utilize a divorced wastegate configuration for optimal flow. A 3" 2 bolt flange is used to connect the downpipe to most aftermarket exhaust systems as well. Unleash hidden power with a GrimmSpeed downpipe!
Features and Benefits
- 3" 16ga 304L Stainless Steel Construction
-Proudly made in the USA - Design, Materials and Fabrication
-FARO Arm Designed
-O2 Bungs for factory sensor and aftermarket wideband AFR
-Divorced Wastegate for Optimal flow
-GrimmSpeed Gaskets Included
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