Kinetix Racing Resonated Test Pipes Set (350Z | G35)

Fits: 2003-2006 Nissan 350Z, 2003-2006 Infiniti G35 Sedan, 2003-2007 Infiniti G35 Coupe, 2003-2008 FX35 Features: New improved design with more installation clearance and a larger resonator section (less noise) A MUST HAVE modification for Turbocharged vehicles!! Easy gains of 25-35hp and faster spooling These pipes replace your factory catalytic converters, letting all the exhaust pass through freely, but not the noise.  Plain test pipes offer the highest level of flow, but often result in a "raspy" exhaust note between 3-4k rpm.  Test pipes have always been high on the "bang for the buck" list, but the louder exhaust tone can be too aggressive for some people.  So we now offer a full stainless straight through converter replacement, but with a stainless exhaust resonator welded in-line.  This gives an equal amount of flow, but with less raspiness.  The exhaust note will only be slightly louder, and have a slightly deeper tone.Catalytic converters are the biggest "choke" point in t