Improve your Nissan performance with an aftermarket performance exhaust pipe. Give your Nissan the performance it needs with a Kinetix Stainless Steel Test Pipes. These Kinetix Stainless Steel Test 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 3-5k rpm. The Kinetix Stainless Steel 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 without the raspiness. The exhaust note will only be slightly louder, and have a slightly deeper tone.

The Catalytic converters are the biggest "choke" point in the exhaust.  The Kinetix Stainless Steel Test Pipes have shown a 5-12hp increase at the wheels on factory car. Our high flow catalytic converters will show almost equal gains, but straight through are a MUST for any FI application. The Kinetix Stainless Steel Test Pipes on a turbocharged 350z (example Greddy) will see a gains of 25-35 hp with faster spool times. They are constructed entirely of Stainless Steel and feature true mandrel bends and 3/8" thick flanges with a highly polished 4" body full stainless resonator on each pipe. The Kinetix Stainless Steel Test Pipes with In-Line Resonator Set also feature the factory located O2 oxygen sensor bungs so factory sensors are retained. They will bolt right up to either factory headers or aftermarket headers. They are also compatible with either factory or aftermarket exhausts. All of our converters come with new hardware including bolts, washers, and lock nuts. So forget those thoughts of having a factory test pipes and take a look at the Kinetix Stainless Steel Test Pipes today.