well he's doing my intake manifold right now. nothing special he is just very gifted with a dremel and a few other tools. only thing i know he does is SHO intake manifolds, runners and throttle bodies. anything else is really up to him. the results won't be on par with EH but he is only charging me $200 for the whole setup, and that is with gasket matching. EH on my mani goes for around $500. so yeah. honestly most aftermarket manifolds are nothing more than port and polished versions of the stock ones. rarely do they get that much bigger. unless we're talking race application.