The COBB Titanium Cat-Back Exhaust is a premium, lightweight performance system engineered specifically for the 2011–2021 Subaru WRX and STI sedans. Constructed from high-grade Grade 4 titanium, it offers outstanding corrosion resistance, refined sound quality, and exceptional durability. Designed with back-purged welds and slip-fit connections for maximum strength and adjustability, this system is built to perform and impress.

Unlike other titanium systems that often produce a tinny exhaust tone, COBB’s proprietary design and craftsmanship deliver a deep, controlled exhaust note reminiscent of their stainless steel systems—but at nearly half the weight. The blued titanium tips, complete with the COBB logo, provide a distinctive visual upgrade that matches the system’s high-performance character.

Check out Elite Race Fab's full walkaround and sound clip HERE

Key Features:

• Grade 4 Titanium Construction – Lightweight, corrosion-resistant, and impact durable

• Back-Purged Welds – Ensures strong, contamination-free connections

• Slip-Fit Connections – Allows wide adjustment range during installation

• Blued Titanium Tips – Stylish, heat-treated finish with COBB logo

• Oval Straight-Through Muffler – Refined exhaust note with minimal restriction

• Lightweight Design – Weighs only 24 lbs, ~50% lighter than stainless systems

• COBB Quality – Built for performance, longevity, and premium appearance

Vehicle Fitment:

• 2011–2021 Subaru WRX Sedan

• 2011–2021 Subaru WRX STI Sedan

What’s Included:

• COBB Titanium 3" Cat-Back Exhaust System

• Blued Titanium Tips

• All Necessary Hardware for Installation