Invidia HS02SW1GTR N1 3" Cat-Back Exhaust for 2002-2007 Subaru WRX/STI

Vehicle Fitment

• 2002-2007 Subaru Impreza WRX (bu-dochassis)
• 2004-2007 Subaru Impreza WRX STI

Features

• High-flow 3" (76 mm) mandrel-bent stainless steel piping
• N1 racing muffler core for aggressive tone and minimal restrictions
• Resonated mid-pipe includes bolt-in silencer for noise management
• 101 mm polished stainless steel single-exit tip
• CNC flanges and robot TIG welding for precision sealing
• Factory-style welding for hangers - no cutting or trimming
• Gains strong mid-to-top end power with increased horsepower & torque :contentReference[oaicite:0]{index=0}
• Comes with full hardware, gaskets, and clamps

Specifications

• Part Number: HS02SW1GTR
• Pipe Diameter: 76 mm (3")
• Tip Diameter: 101 mm polished stainless steel
• Material: SUS304 stainless steel
• Resonator: Included mid-pipe silencer
• Fitment: Cat-back system (post-cat to tip)

Included Components

• 1x Mandrel-bent mid-pipe with silencer
• 1x N1 racing muffler section
• 1x Tailpipe with 101 mm polished tip
• 1x Bolt-in silencer insert
• 1x Complete hardware kit (gaskets, clamps, hangers)

Product Description

The Invidia HS02SW1GTR is a legendary N1 cat-back exhaust system crafted for 2002-2007 Subaru WRX and 2004-2007 STI models. Engineered with high-flow 3" SUS304 mandrel-bent piping and a racing-style N1 muffler, this system delivers robust mid- to top-end power gains while producing an aggressive exhaust note that becomes synonymous with Subaru performance :contentReference[oaicite:1]{index=1}.

A bolt-in silencer mid-pipe allows tuning of the exhaust volume to match your driving environment - ranging from racetrack roar to street-legal tone. Precision CNC flanges and robot TIG welding ensure a seamless, leak-free installation using factory hangers - no cutting or trimming required. The polished 101 mm tip adds a refined touch while maintaining a race-inspired look.

Backed by Invidia's reputation and tested through numerous dealer listings, this cat-back is a high-value upgrade for enthusiasts seeking performance, uncompromised sound, and straightforward installation. Complete hardware is included for a direct fit. **Fitment confirmed 2002-2007; 2007 is final year for this chassis.**