twolftwolf said:If you can find them, I would highly recommend the ATS Comp. Light 17" wheels. They are being clearenced all over (I called at www.tires.com) and you should be able to get them for around $125 - $175 a wheel depending on desired finish.
they look great, but the real catch is their weight. The GTO's stock 17's weigh in at 26 lbs a piece. The ATS wheels are 16 lbs a piece. That is 10 pounds lighter per wheel!!! If you know a bit about physics, rotational mass, drivetrain internal resistance etc, you quickly see that these particular wheels look cool and actually DO make your car go faster. (note: most aftermarket wheels are nearly the same weight, if not more weight than, the stock wheels.)
Just my $02.