Invidia Racing N1 Muffler Catback Exhaust for Subaru WRX and STi feature 3in stainless steel piping with no resonator for optimal flow. The the N1 muffler has a JDM look, and a burnt 4in titanium tip. This system is louder than the G200 and Regular N1 catbacks - it is exceptionally free-flowing but very loud. the included silencer helps to significantly reduce noise, but this is still a loud exhaust.
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