DriftShop Downpipe for Mazda MX-5 NA 1.6L 90 hp & 1.8L 130 hp (94-98) The downpipe is the section of the exhaust system located between the manifold and the catalytic converter. Produced by DriftShop this downpipe for the MX-5 NA has a 54 mm outside diameter and a 52 mm inside diameter. DriftShop exhaust components are manufactured using T304 stainless steel and TIG welding. They are a great balance between performance reliability and cost. Combining a DriftShop downpipe decat and catback exhaust system will bring huge performance benefits by reducing restriction on the exhaust gases flow. Includes mounting clamp and gaskets. Compatible with the following vehicles : MX-5 1.6L 90 hp 1994-1998 (B6-ZE) MX-5 1.8L 130 hp 1994-1998 (BP-ZE)