SKU: BUNI-001-253 | UPC: 700424680122
Cobb 2.5″ 2-Bolt Exhaust Gasket for 2002-2021 Subaru WRX/STI & Mitsubishi Evo
The Cobb UNI-001-253 2.5″ 2-bolt exhaust gasket delivers a multi-layer stainless steel seal for 2.5″ exhaust joints on Subaru WRX, STI, Forester XT, Legacy GT, Mitsubishi Lancer Evolution, and universal applications. Raised sealing beads crush under torque for a tight, leak-free connection that holds up in performance setups. This direct replacement fixes worn or damaged gaskets in downpipe-to-catback and turbo outlet connections.
Key Features
- Multi-Layer 304 Stainless Steel: Resists corrosion and handles high exhaust temperatures
- Raised Sealing Bead: Compresses on both sides for a reliable seal when bolts are torqued
- Universal 2-Bolt Design: Matches 2.5″ flanges on Subaru EJ/FA engines, Evo 4G63/4B11, and aftermarket systems
- Leak-Free Performance: Locks in backpressure and stops exhaust gas escape
- Made in USA: Built to exacting standards with 12-month limited warranty
Product Notes
- One-time use gasket; replace after disassembly for maximum seal integrity
- Inspect flanges for flatness before install to ensure proper crush
- In stock item ships in protective retail packaging
Installation Notes
- Professional installation recommended.
- 15-30 minutes install time; clean flange surfaces and torque bolts evenly to 25-30 ft-lbs
- Compatible with OEM and aftermarket 2.5″ 2-bolt hardware; no additional parts needed
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2007 | Subaru | Impreza | WRX |
| 2004-2021 | Subaru | Impreza | WRX STI |
| 2004-2013 | Subaru | Forester | XT |
| 2005-2009 | Subaru | Legacy | GT |
| 2004-2006 | Mitsubishi | Lancer | Evolution VIII |
| 2007-2008 | Mitsubishi | Lancer | Evolution IX |
| 2008-2015 | Mitsubishi | Lancer | Evolution X |
Why Choose Cobb?
- Performance parts specialist for Subaru and Mitsubishi tuners
- Durable materials built for track and street exhaust demands
- Engineered for direct fit on factory and upgraded turbo-back systems
Frequently Asked Questions
- Q: Will this fit my 2010 Subaru STI downpipe?
A: Yes, matches factory and Cobb catless/catted downpipe 2.5″ 2-bolt flanges on 2004-2021 STI. - Q: What material is used in construction?
A: Multi-layer 304 stainless steel with raised beads for heat and pressure resistance. - Q: What is the warranty and reusability?
A: 12-month limited warranty; designed as single-use crush gasket, replace after removal.
Shipping & Handling
- Method: UPS/FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Official Cobb Tuning retail envelope, 6 x 4 x 0.5 inches
- Weight: 1 oz (0.06 lbs)
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