COBB 3in Stainless Steel Catback Exhaust Subaru STI 2008-2014 / WRX 2011-2014 Hatchback
COBB 3in Stainless Steel Cat-back Exhaust for the Subaru WRX and STI. This much anticipated exhaust uses a unique straight-through muffler section rather than common chambered designs, which minimizes tubing bends, reduces back-pressure and keeps sound output below SAE standards. The outstanding craftsmanship and attention to detail are evident in every aspect of this cat-back.
Exhaust gasses are guided through 3-inch diameter tubing into the center inlet of the fully-24-inch wide muffler section. Internal to the muffler, the exhaust gasses pass through a reversed Y merge, efficiently splitting the exhaust into separate muffling chambers on each side of the canister. 2.5-inch outlets emerge symmetrically from each side of the canister and direct the exhaust out the rear through quad polished exhaust tips. This straight-through exhaust design is much more effective at reducing exhaust back-pressure.
- Straight-through optimum flow design
- 304 stainless throughout
- TIG welded
- Direct replacement for OEM
- Quad polished tips for hatchback only
- Fits stock downpipe
- Fits COBB 3î SS Downpipe
- Hardware included
Part Number: 515100
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