Invidia R400 tuned muffler exhaust systems offer a rich exhaust note which enhances the natural tone of your car’s engine. Invidia’s high flow design ensures efficient exhaust flow for optimum engine performance.  Specifically designed to fill the sound gap between the Q300 and N1 system. The R400 produces a unique, aggressive note without any harsh cabin noise (particularly at highway speeds).

Features:
– Tip Size = 101mm
– Piping Size = 76mm
– Power increase – 17hp
– Torque Increase – 26ft-lb
– 76mm diameter, 1.5mm thick mandrel bent SS304 Stainless Steel piping – greatly reduces the risk of cracks and breaks developing, reduces rasp and vibration.
– Tuned mufflers – Optimized sound and exhaust flow
– Cast flanges – optimum fitment and durability
– QUAD Straight cut Titanium colored Tips

Applications:
2011-2014 WRX (Hatchback ONLY)
2008-2014 STI (Hatchback ONLY)