Invidia [11-14 WRX] [11-14 WRX STI] R400 Gemini Cat-Back Exhaust - Quad Stainless Steel Tips (Sedan)
The Invidia R400 Gemini cat-back fills the sound gap between the mild Q300 and the aggressive N1 - a deep, pronounced exhaust note throughout the RPM range with no harsh cabin noise at highway speeds. Quad 4-inch slash-cut polished stainless steel tips give the rear a race-ready look, while 3-inch mandrel-bent 304 stainless steel piping delivers dyno-proven gains of +17 horsepower and +26 lb-ft of torque.
- R400 Gemini tuned mufflers - deep, aggressive note without highway drone
- Quad 4-inch (101mm) slash-cut polished stainless steel tips
- 3-inch (76mm) mandrel-bent 304 stainless steel piping, 1.5mm wall
- Dyno-proven gains of +17 HP and +26 lb-ft of torque
- Cast flanges, machine TIG-welded
- New gaskets, nuts and bolts included
- Sedan chassis only - does NOT fit hatchback models
- Fits 2011-2014 Subaru WRX Sedan and WRX STI Sedan
- Note: with a stock j-pipe or downpipe, the GrimmSpeed stock-downpipe-to-aftermarket-3-inch catback adapter (p/n 077046) is required for proper fitment.
- Part number: HS11STIGM4SS
Products received may vary slightly from images due to manufacturing tolerances or supply chain variables.
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