I dont know how stout 1.5's are so i wouldnt know.If the fuels there u should be fine at that low boost.I would highly reccomend a fuel pump upgrade.The turbo wont clear your croosmember so u have to rotate the turbo,make a custom downpipe,or get an aftermarket x-member.The cheapest way out is just cut into the x-member.U seem to have pretty much everything but charge pipes and the fuel pump.