Our Stainless Steel 4-1 exhaust manifold for the Mazda MX5 NC features massive 2" primaries, surpassing any other off-the-shelf exhaust manifold on the market. It is compatible with the OEM exhaust system or our own 2.5" modular stainless steel exhaust system (please click here). This manifold is UK manufactured, TIG welded 304 stainless steel, with a 10mm thick mounting flange. 

Suitable for all Mazda MX5 NC models in 1.8 or 2.0 form as well as the hugely popular 2.5 conversions where exhaust manifold diameter becomes very important. 

Note that this manifold does not feature a catalytic converter where the OEM manifold did, and should therefore be considered competition use only.