All new cars have catalytic converters as standard. This means that for most recent cars (from 1992 onwards) the law states that you must have a catalytic converter fitted for MOT purposes. Fortunately, Jetex can now offer universal fit road legal sports CATs. They are ideal for road or track use, and are available as 100 cell or 200 cell units, to fit pipework ranging from 44mm to 70mm (3"). Materials: The catalysts are made from a stainless steel outer casing. The interior substrates are made from vacuum brazed ultra-thin metal foil. This type of susbtrate is far more resilient than ceramic core substrates and so is ideal for performance use. 100 or 200 cell Units: By offering two different cell densities, we can cater for applications that require the best gas flow possible (100 cell) and for those applications with the latest version of 'OBD2' on-board diagnostics (200 cell). Versatile: As these catalysts are universal fit, they can fit a wide range of pipe diameters and engines with power outputs of upP to 375HP. They are also suitable for normally aspirated engines as well as turbo or supercharged engines.