Once chipped there should not be any difference in HP between the years. There can be a difference with the euro high compression car's.
Some dynos though testing at the wheels can be set to compute the HP to the flywheel. Lets put it this way, That would be 267fwhp. There is no way a US 3.2 w just a chip and cat bypass is going to pull that when a euro 3.2 is about 232hp and a 89-94 3.6 is rated at about 250hp.
My car's best pull was 217rwhp with a custom SW chip and cat bypass. I was told the dyno used reads low compared to others. That would be 255fwhp! I suspect I am lucky if I am truly at about 230-235fwhp using factory German sized horses. Otherwise we must just have smaller horses over here.
