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This is the XForce 3" stainless steel cat-back exhaust system for the Subaru WRX / STI G3 VA sedan, and it replaces the exhaust from the catalytic converter back. It is a mandrel-bent system in brushed 304 stainless steel: a 3" centre section with a hot-dog style resonator, a cast stainless steel Y-piece with the X logo, then twin 2.5" bore rear sections running into twin oval rear mufflers. The exhaust gases leave through four 4" burnt blue look tailpipe trims.
The diameters are the part worth reading. Two 2.5" rear sections together carry more cross-section than the single 3" pipe that feeds them, so the 3" centre section sets the flow capacity of the whole system and the split behind it does not narrow the path back down, while mandrel bending keeps that bore full through the bends. Because the hot-dog resonator sits in the single centre section, ahead of the split, it works on the whole flow once rather than needing one resonator per rear section, and the twin oval mufflers then do their work at the back. It is aimed at an owner looking for a high-flow performance exhaust, with the quad 4" burnt blue look tips as the part of it you see.
Features
- 3" cat-back system in brushed 304 stainless steel
- Mandrel-bent construction
- 3" centre section with hot-dog style resonator
- Cast stainless steel Y-piece with X logo
- Twin 2.5" bore rear sections into twin oval rear mufflers
- Quad 4" burnt blue look tip outlets
Fitment
Subaru WRX / WRX STI, G3 (VA) chassis, sedan body only. If you are not sure whether your car is covered, message us with your year, trim and engine and we will confirm the fit before you order.