rewiring the stock fuel pump should give you some good results but it all depends on how far you are going to go. you should have a goal on how fast you want your car to be. if your going to get a bigger turbo youll need to upgrade the fuel pump. and then get it in tune with a afc.
but rewiring it couldnt hurt. plus its cheaper. there are steps on how to do this and there pretty easy. heres how to do it after you have all your supplies
http://www.dsmtuners.com/forums/showthread.php?t=96412
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