The COBB Stainless Steel Cat-Back Exhaust is a premium, direct bolt-on upgrade for the VB WRX that delivers improved flow, refined sound, and OEM-like fitment quality. Built entirely from 304 stainless steel and TIG welded throughout, this system features robust cast flanges and a cast Y-split for long-term durability and consistently leak-free connections. The result is a crisp, sporty exhaust note that is clearly more aggressive than stock without introducing the kind of cabin drone that ruins daily drivability.

Cobb Product Highlight: Stainless Steel Catback 22+ WRX

Key Features

• Full 304 Stainless Steel Construction: Excellent corrosion resistance and long-term durability.
• TIG Welded Throughout: Clean, high-quality welds for strength and a premium finish.
• 3" Mid-Pipe Design: High-flow 3" tubing from the front flange to the Y-pipe connection.
• Factory Donut Gasket Compatibility: Machined cast front flange designed to accept the OEM donut gasket for a leak-free install.
• Integrated Flex Section: Adds compliance for improved fitment and reduced stress on mounts.
• Cast Y-Split & Flanges: Durable cast split section and cast flanges resist distortion compared to welded alternatives.
• Bespoke COBB Muffler Design: Dual mufflers with single 2.5" inlets and dual 2.5" outlets for balanced tone and flow.
• Adjustable Slip-Fit Tips: 3.5" dual-wall, slash-cut tips with laser-etched COBB logos for precise final alignment.
• MLS Gaskets Included: Multi-layer steel gaskets for all connections.

Why We Like It

This is the kind of exhaust that feels engineered, not improvised. The cast Y-split and flanges, OEM donut gasket interface, and thoughtful muffler design make it a standout option for VB owners who want a cleaner, more mature tone and premium build quality without sacrificing comfort.

Specs

• System Type: Cat-back exhaust
• Mid-Pipe Diameter: 3"
• Y-Pipe: 3" to dual 2.5" via cast split section
• Muffler Inlet/Outlet: Single 2.5" inlet, dual 2.5" outlets (each side)
• Tip Size/Style: 3.5" dual-wall, slash cut, adjustable slip-fit, laser-etched logo
• Material: 304 stainless steel
• Welding: TIG welded
• Gaskets: Included multi-layer steel (MLS)

Installation Notes

• Direct bolt-on installation for the VB WRX.
• Front cast flange is designed to accept the factory donut gasket.
• Use included MLS gaskets on all applicable connections.
• Adjust slip-fit tips after fully aligning the system for the best bumper cutout positioning.
• Re-check hardware torque after the first heat cycle.

What's in the Box

• COBB 3" stainless steel mid-pipe with flex section
• Cast Y-pipe section with cast flanges
• Dual COBB muffler sections
• Adjustable 3.5" dual-wall slash-cut tips
• Multi-layer steel (MLS) gaskets
• Required installation hardware

Compatibility Disclaimer

Designed specifically for the 2022-2025 Subaru WRX (VB). Always confirm vehicle fitment prior to installation. Exhaust sound perception may vary based on additional modifications and cabin setup.