hello every one my, i just bought 2005 gtp and am new to the whole pontiac thing. i bought be cause a friend of mine has a 1999 gtp with a lot of modd and a lot of power. however im figuring out everday mine is going to be harder to modd. one question i have is do i need to do anything to the car to be able to use a 3.4 pulley on the car. the car is stock now and i have a 3.4 pulley sitting around but i dont want to put it on and break something. please let me know you thoughts.