my friend has an sti i dont know much about them... but from what im told (this isnt my info so dont blame me if im wrong) on a stock sti its not good at all to turn up the boost much over stock
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2002 Trans am ws6.. black on black bolt ons with a JS built trans, 3200 stall,TTM's w/315's, full umi adj rear suspension, strano springs/sways, and koni 4/4's
2015 Forester XT touring... STI Sway bars
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