Features

• Mandrel-bent stainless steel piping for maximum flow and durability
• Free-flowing oval sport muffler for improved exhaust flow and performance
• Aggressive exhaust note without harsh or overly loud overtones
• Dual tip outlet configuration
• Direct bolt-on fitment for sedan models

Notes

• If running a stock J-pipe or downpipe, the GrimmSpeed Stock DP to Aftermarket 3 in. Cat-Back Adapter (p/n 077046) is required
• Sedan fitment only — see separate listing for hatchback models

Fitment

2008–2014 Subaru WRX Sedan
2011–2014 Subaru STI Sedan
2009–2013 Subaru Forester XT

Part Number

HS08SW4GT3

Prop 65 Warning

⚠️ WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer, and carbon monoxide, which is known to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.