Looking to purchase a tubular manifold for my '03. I found that some of the offered manifolds seem to be equal length, where as some are not. With the mitsubishi twin scroll/reverse rotation turbo set-up is there reasoning that the non-equal length manifolds are more efficient?? In my opinion, as with any other turbo set up, equal length will produce most power gains and possibly smoother "power curve". I am also considering to purchase an ATP GT35 turbo kit(not sure what A/R yet). Im sure that the length of the runners will influence the turobos overall performance. (the ATP kit uses prototype/custom housing with garret BB turbo). If anyone has some helpful advice/tips for me that would help.