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Grand Prix build looking for help

B

bcearley

New member
Im looking to build a 2004 Grand Prix GTP have done some looking and this seams to be the normal build just looking for some input. Should I go SS intercooler or full sized what hood will the full sized fit under. What size pulley. Thanks in advance.

Intercooler
Smaller pulley
Auto light 104 plugs
Zzp 1.0 pcm
180 thermostat
intake
exhaust
 


Um, yeah, a canned tune cant be run with a intercooler.

You need a full on custom tune with a wideband.


Headers, Intake, 605's, 3.6 pulley and a overkill tune will do fine.

Anything past a 3.6 and you dont want to run a canned tune, it only good for so much.

(I say 3.6 because the Gen V is better than a Gen 3)

You got alot of reading to do, to know how to mod these cars.
 
Do not I repeat do NOT go with a SS intercooler. Complete waste of money. I did it on a previous GTP and regretted it later.
 


dont so a SS IC bad idea, put a full sized IC on there get a MPS and run a 3.5'' or 3.4'' pulley withe some headers also make your own intake, the correct plugs and a 180 tstat too, you should be able to fit the IC with the stock hood unless you lower your car, you might need bigger injectors too, top it all off with a custom dyno tune from a local shop and you should be good to go until you break your trans
 
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