COBB 3in Stainless Steel Cat Back Exhaust (512100) | Subaru WRX 2002-2007 / STI 2004-2007

The COBB 3in Stainless Steel Cat Back Exhaust is engineered to improve exhaust flow, enhance turbo response, and deliver a refined performance tone for Subaru EJ-powered platforms. Designed for enthusiasts seeking a balance of power and drivability, this system reduces restriction compared to the OEM exhaust while maintaining a smooth acoustic character suitable for daily use.

KEY FEATURES

• 3-inch mandrel-bent tubing for optimized exhaust flow
• Straight-through muffler design enhances turbo responsiveness
• 304 stainless steel construction for long-term durability
• Improved exhaust note without excessive cabin drone
• Direct bolt-on installation using factory hanger locations

TECHNICAL SPECIFICATIONS

• Fully TIG-welded 304 stainless steel system
• 3-inch primary piping designed for reduced backpressure
• Polished dual-wall exhaust tip for a clean, OEM-plus appearance
• Precision-aligned flange geometry ensures proper sealing
• Compatible with OEM or COBB downpipe configurations

VEHICLE FITMENT

• Subaru WRX 2002-2007
• Subaru STI 2004-2007

COBB delivers proven, data-driven performance solutions engineered to optimize your Subaru with unmatched precision and reliability.