Stainless Exhaust Manifolds from the USA


Regular Member
Im wanting a stainless or quality cast iron manifold that is a direct "bolt on" replacement for the standard exhaust on my Astra g that will require no modification to fit. For cost reasons it has to come from the USA....anybody know of any good ones that will provide a modest increase in power on my standard engine, well standard apart from panel filter, ported throttle body and air box mods with vec c air intake.....i might port the head in future though and also remove balance shafts.
none will fit from the states, they have a different exhaust shape and the exhaust goes over the top of the steering rack - thus they will not fit european cars without heavy modification