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2005 base model mod help

MOTELETJR

MOTELETJR

New member
I have a 2005 base model grand prix looking for max upgrades.. I curently have 2.5" pipe from stock cat, no res to a magnaflow exhaust. Custom intake and breather filter. 180" t-stat just did tune up. What else could i possibly do? Headers? top swap? or will that kill my tranny.. I have 105,000 miles.. Beginer looking for expert advice thanks..
 


MOTELETJR said:
I have a 2005 base model grand prix looking for max upgrades.. I curently have 2.5" pipe from stock cat, no res to a magnaflow exhaust. Custom intake and breather filter. 180" t-stat just did tune up. What else could i possibly do? Headers? top swap? or will that kill my tranny.. I have 105,000 miles.. Beginer looking for expert advice thanks..
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Did you have it tuned for the 180 stat? if not it won't do you any good.Also building more power to a stock tranny spells breakage.Hopes this helps
 
Thanks guys.. no i havent tuned yet.. i was waiting till i got all my upgrades the was going to purchase an overkill pcm.. Not sure how to tune myself or what scanner to purchase.. Is overkill the best pcm out there or zzp? Just ordered a powerlog for a little more power. Looking at a ported rear next..
 
A HV3 for more top end helps on NA's.Overkill is what most guys use,seems to be the the norm.Sounds like you're in the right track.
 


ok powerlog on, next is downpipe and tuned pcm, are injectors and rockers only for s/c or will they help a n/a?
 
I had that plan at first, but as I was reading into it a supercharger wont bolt on to my n/a engine L26. Or am i reading wrong? Will I have to change the tranny also? You guys are a big help thanks
 


Adding a supercharger is alot of work and huge headache 90% of the time. You'd have to swap the entire top end over from a supercharged motor. The heads, intake, blower, fuel rail, injectors, different pcm, the whole works. The trans wouldnt need to be touched.



If you added a cam, that would help just about everywhere for power and a tune would help "some" aswell. The NA motor is just very limited.
 


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