Wrx wrx has a 5x100 pcd. As for the differences between a jdm sti motor and a normal jdm wrx motor or usdm wrx motor is the higher redline forged crank and pistions much better headwork and valvetrain different turbo and intercooler and a few other little tidbits.
Subaru Forester Wikipedia
Difference between wrx and sti 2004. Base trim you get the car and very little else. 2002 2007 front struts are interchangeable between wrx model years. The wrx is available with a subtle lip spoiler. 2005 2007 front struts are not interchangeable between wrx and sti since the knuckle design diverged. The subaru intelligent drive throttle management system is only available in on a continuous variable transmission wrx while the sti offers it as a standard feature. In the war between the subaru wrxsti and the mitsubishi lancer evolution who ya got.
There are also a lot more differences between the wrx and the sti especially in the interior where you get more premium materials like leather seats and better gauges. Wrx balanced more toward comfort and economy slower smoother ride uses less fuel. 1the sti produces more horsepower than the wrx 2the sti produces more torque than the wrx 3the sti is equipped with si drive while the wrx isnt. Has a wing and other aero exterior parts. The difference is pretty much the entire motor i think the sti uses the ej25which is a 25l compared to the wrxs 20 the turbo on the sti is also a vf39 while the wrx is notnot sure what turbo is on that car but its got laggggg the intercooler is 40 bigger than the wrx one alsosomething around that. Sti balanced toward performance more engine faster stiffer ride uses more fuel.
They formed a rivalry that sadly no longer exists today but its legend certainly does. 2002 2004 front struts are interchangeable between wrx and sti as both use the same knuckle. The sti on the other hand comes with a standard park bench spoiler.
Gallery of Difference Between Wrx And Sti 2004
