horsepower

hello everyone i m new here and im just to do some research i jut invested in a 2000 grand prix gtp and i was wondering what would be the most efficent way to get 350 horsepower under the hood of the car without changing the polley also i need to know what type of exhaust is best as far as sound and performance pls help

hello everyone i m new here and im just to do some research i jut invested in a 2000 grand prix gtp and i was wondering what would be the most efficent way to get 350 horsepower under the hood of the car without changing the polley also i need to know what type of exhaust is best as far as sound and performance pls help

Why without changing the SC pulley? Technically, its the most efficient and cost effective mod after a re-programmed ECU/PCM



http://i5.photobucket.com/albums/y186/lizzywiz/gtp.jpg
Thrasher CAI, DHP v1.0 PCM,
3.25 SC pulley, CAIT GMAF, Hi-Flow CAT,
u-bend delete, 160 TS, TB spacer,
MSD 8.5mm wires, Autolite 104 Spark Plugs,
Goodyear Gatorback Serp. & SC Belt,
Nitto NT555R Drag Radials

just change the pully....why not? anything else would be more expensive or extensive...i would definitely do that as a first step and then do the reprogrammed ECU...

the reason why i dont want to change the pulley is becuaes i want that to be my last upgrade because i plan on getting an intercooler to go with it and also can anyone tell me where i could find the smallest pulley from becaue i ve heard of people running 2 .5 inch pulley s but i cna t seem to find one online or anything

You can get a 2.5 from zzp i believe. you'll need to get your snout milled down to go below a 2.8


http://www.zzperformance.com/products1.php?id=295