i’ve got a standard 2002 1.8 engine and am looking at what exhaust to fit. whats the factory system bore size for this engine?
Hi, not sure what you mean by bore size, most fit an after market system from the cat. back, its the only way to pass your MOT. are you looking for original factory system or louder sport type? Mazda supply original (no MOT problem) and after market systems obtainable from MX 5 parts, Moss, etc. these are mostly in stainless steel, all fit straight onto your MX (just state model and engine size), good luck. PKW
reason i ask is because i’m converting my car to a 2002 engine and my exhaust system is only 2" bore at the moment and the primary pipes on the manifold on the late engine are pretty big. so i’m wondering if my system is gonna be too small. so would like top know what size bore mazda used for the later engine. make sence?
Try a Larini 100mm Dual Exit system…it’s the Rolls Royce of MX5 exhausts.