I have spoken to Simon in the past and he seems to know his stuff. I spoke to emu performance and he told me for $5800 I will see 400rwhp and that price includes, Fully custom exhaust all stainless, 4" dump, 5" cat and twin 2.5" catback. And also included injectors and fuel pump with the xcal 3 and tune. I spoke to black mac performance and he told me $3000 would get me tune, xcal 3, 60pound injectors and no fuel pump. But the price included him installing the full exhaust I supply and the fuel pump I supply. But interesting was. Emu told me there is no point upgrading the intercooler until I get serious. Thinks a f6 intercooler will do me for 330rwkw Once I start doing things like the intake plenum it would be worth getting a big plazman one then. Black mac... Didnt say a hell of a lot. Im going to call Simon today and see what happens. All I really want is to run 11's.