Turbo XS W08H-CBE Cat-Back Exhaust System for 2008-2014 Subaru WRX STI Hatchback

Vehicle Fitment

• 2008-2014 Subaru Impreza WRX Hatchback (5-Door, 2.5L H4 Turbo, AWD)
• 2008-2014 Subaru Impreza WRX STI Hatchback (5-Door, 2.5L H4 Turbo, AWD)

Fitment Notes

• Hatchback (5-door) body style only - does not fit 2008 WRX Sedan models
• If using a stock J-pipe or OEM downpipe, GrimmSpeed Catback Adapter p/n 077046 is required

Features

• 3-inch mandrel-bent stainless steel midpipe for maximum exhaust flow
• Integrated flex pipe design reduces vibration and stress on joints
• 2.5-inch oval muffler delivers a refined, subdued exhaust tone
• Single 4-inch polished stainless steel rolled tip for a clean appearance
• Engineered specifically for the 2008+ WRX hatchback chassis
• Designed to improve exhaust gas scavenging and reduce backpressure
• Compatible with Turbo XS Cold Air Intake (WS08-CAI) for a full intake-to-exhaust upgrade
• Bolt-on installation using factory mounting points and hangers

Specifications

• Pipe Diameter: 3 inches (midpipe)
• Muffler Inlet Outside Diameter: 3 inches
• Muffler Body: 2.5-inch oval design
• Tip Style: Single rolled tip
• Tip Diameter: 4 inches
• Tip Finish: Polished stainless steel
• Pipe Material: 304 stainless steel
• Surface Finish: Polished
• Position: Cat-back (from catalytic converter exit rearward)
• Hangers Included: Yes
• Mounting Brackets Included: Yes

Included Components

• 1x 3-inch mandrel-bent midpipe with flex section
• 1x 2.5-inch oval muffler assembly
• 1x 4-inch polished stainless rolled tip
• 1x Set of mounting hangers and hardware

Product Description

The Turbo XS W08H-CBE is a bolt-on cat-back exhaust system purpose-built for the 2008-2014 Subaru WRX and STI hatchback. Featuring a 3-inch mandrel-bent 304 stainless steel midpipe and a flex pipe section, this system reduces exhaust backpressure while managing drivetrain vibration - a common concern on turbocharged Subaru platforms. The custom-designed oval muffler keeps sound levels civilized without sacrificing the signature turbo boxer tone, making it a strong choice for daily drivers who still want performance gains.

Installation is straightforward using factory hanger locations, and the system pairs cleanly with the Turbo XS Cold Air Intake (WS08-CAI) for a well-matched intake and exhaust combination. Note that this system is designed exclusively for the 5-door hatchback body style and will not fit the 2008 WRX sedan. Owners retaining the stock J-pipe or OEM downpipe will need the GrimmSpeed Catback Adapter (p/n 077046) for proper connection to the 3-inch midpipe.