High Flow Testpipe Test Pipe 240Sx S13 S14 W/ KA24DE Or SR20DET - Free Shipping

Stock catalytic converter is often the greatest source of backpressure in an exhaust system, replacing the Cat-converter with a test pipe can dramatically increase exhaust air flow. A test pipe is a replacement for the factory catalytic converter. Our test pipe will work with the OEM exhaust as well as any exhaust that would keep the factory catalytic converter. Many would agree replacing the catalytic converter is the best bang for the buck and easiest upgrade to increase engine performance.