R-Spec 304 SS Polished Resonated Test Pipe by ARK Performance®. Series: R-Spec. Material: 304 SS. Finish: Polished. Main Piping Diameter: 2.5".
The ARK test pipe is designed to get the most out of high revving motors. ARK uses 2.5" piping made from SUS-304 stainless steel. They have dyno proven increases in horsepower...