HJS Tuning Catalyst | 200-cell 130mm OD x 112mm L (Directional) Exhausts XperTune Performance software upgrade improves

XperTune Performance software upgrade improves horsepower

but we've invested a lot of time and resources into developing the best possible McLaren downpipes and we're now proud to offer you this latest and greatest solution

is strictly intended for closed track events and off-road use only

we are making an important contribution to protecting mankind and the environment

HJS Tuning Catalyst | 200-cell 130mm OD x 112mm L (Directional) Exhausts XperTune Performance software upgrade improvesGenuine HJS Tuning catalytic converter cores for replacement upgrade of restrictive factory cats. This is an individual catalyst; welding required SPECIFICATIONS: CPSI (cells per square inch): 200 Diameter: 130mm Duration (length): 112mm Directional: Yes HJS Tuning HJS has more than 30 years of experience and expertise in the field of exhaust gas aftertreatment. For 10 years, we have been engaged in the development, production and marketing of HJS