Originally Posted by monkiboy
any to provide further specificity to this thread, you are talking about how the full-race fmic kit requires the rotated manifold. you are not under the presumption that the full-race twin scroll kit does, correct?
also, are you familiar with the costs and laborious effort is required in rotating a manifold (regardless of which), custom efforts, possible throttle body issues/resolution, etc required? if not, it is far more cost effective to run your stocker manifold in stock configuration with any myriad of cores and just have the one charged pipe fabbed up.
if you're still set on the full-race fmic kit and reversed manifold, just about any manifold can work. you will want to take into consideration the throttle body of the manifold you are using and that of your current car. all stis are DBW as are all 06+ wrx. the 02-05wrx is DBC.
if you really don't care about costs, then it'd be a great consideration to perhaps pick up a jdm long-runner manifold and eliminate the necessary work and costs of tgv deletes. this will of course require work to swap from dbc to dbw and a bit of fab with the fuel rail alignment and holding bracket.
I'm looking to go with the jdm manifold with the long runners and need to know everything needed for the swap.I already have aftermarket topfeed fuel rails and topfeed id1000 Injectors.I just started a thread on this matter so any feedback will be highly apriciated