Drilled 180 Degree Thermostat ($12)
3.4" Supercharger Pulley ($70, cheaper if purchased used)
K&N Air Filter ($35)
Gutted Airbox (Free if you have a way to cut it)
ZZP Ported Exhaust Manifolds ($250)
AC-Delco 41-932 Spark Plugs (1 heat range colder than stock) ($30)
You can purchase the Exhaust Manifolds at ZZPerformance.com and you may want to check out all of their products while you are there. The K&N Air Filter can be purchased at any autoparts store. The T-Stat can be purchased from ZZPerformance, or you can figuree out the right size and buy it off the shelf at autozone and drill it yourself. The Spark Plugs can be picked up at Autozone also, you just tell them you want 41-932 Spark plugs and they should be able to cross-reference them on their computer to whatever their number is for them. The 3.4 Pulley can be purchased from the classifieds section of the ClubGP.com forum used, or can be purchased at pretty much any aftermarket Grand Prix parts store. You should get yourself a good 30-40 horsepower for about $400.
1990 Maroon Grand Prix STE McLaren 3.1 Intercooled Turbo, 14.695 @ 94.49 on 12psi before cam/heads/etc.
1990 Bright Red Grand Prix McLaren 3.1 Intercooled Turbo, 14.819 @ 92.72, 189whp
1999 Grand Prix GT 9.75:1|K&N|160 tstat|No Ubend/Cat/Res|UD Pulleys|Ported M90/TB/Heads|XPZ|2.55"|Pacesetters|Stage 2 I/C. 12.442 @ 112.78
2000 Blue Bonneville SSEi Supercharged Gutted Airbox|K&N|3.4"|1.9'*|WP Pulley|Custom DHP|180*stat|41932'*|No Cat. 14.681 @ 94.80
2002 Dark Cherry Grand Prix GTP Supercharged & Intercooled
12.084 @ 114.38 w/1.743 60', 315.6whp, Fastest Stock Cam M90 GTP!
NOW XP CAMMED, 340.6whp with XP, stock heads, Gen 3 M90, 11.984 @ 115.84 w/1.750 60'!
Most HP Stock Heads Gen 3 M90 GTP!
2004 Red Monte SS Supercharged K&N|3.4 Pulley|1.9'*|180*stat|41919 plugs|3" dp|No cat/ubend|DHP|Shift Kit. 14.2 @ 98
GOT BOOST??? Friends dont let friends drive stock!