How much of a performance gain will I get with just repalacing my pulley to a 3"??? My car is stock all I've done to it is drop in K & N filter.

 

Should feel quiet a bit. I dont know for certain tho I have one becuase I did injectors and tuning all at the same time. Youll get a ton of torque from it. Youll feel it thats for sure.

 

I need more power...is this a good place to start???

 

i just bought it from zzp, im completely stock ill let u know.

 

Keep me posted.

 

it will arrive 2morrow i plan to install it 2morrow as well.

 

I have a 2.9" on mine right now, belt tensioner, and bk7res. Other than that the car is bone stock. There is a noticible increase in torque, and the supercharger really whines up near full boost. (Im seeing about 15psi in 59* weather). The car also gets better highway gas mileage (30+ at 80mph), and a little better city (25mpg).

Next step is GM stage I, and the K&N drop in filter.....

 

im stock i get ~32 highway and between 24-27 city driving...24 is beating on it most of the time, 27 is being sort of nice...

 

I envy you if you get 24 while beating on it. When I get on it a lot, it gets like 17. Perhaps now that the car also has 6000mi on it too, it has improved in mileage.... who knows.