• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

some small mods for my new grand prix

H

honda237

New member
i'm new here, my name is nick, well i finally upgraded to a sportier car and got a 2004 grand prix gt2 (all black), I am not a mechanic by any means, but my dad is. I would love to do some basic mods to my car, but nothing to expensive since i'm on a small budget and its my daily driven car. It will be done over the summer.
What my car already has done from previous owner:
3A racing exhaust
K&N air intake

This is what i am thinking:
HV3 insert
Headers:
GRAND PRIX/GTP/REGAL/IMPALA/MONTE CARLO HEADER/EXHAUST - eBay (item 190509132684 end time Apr-04-11 15:28:03 PDT)
Hi-Flow cat (recommendations)

What do you guys think so far? Any recommendations? HP gain estimate?
Thanks
sorry if this has been asked multiple times, i have done some searching.
 


Headers are fine. If you plan modding past your setup...Example...TOP SWAP...then you won't have to worry about flow mods...headers could be a little overkill for a stock N/A car but I'd never hesitate to get rid of the factory exhaust in these cars. If you never plan on boosting it...get a 3" DP and be done with it.
 


bluegtp91 said:
Headers are fine. If you plan modding past your setup...Example...TOP SWAP...then you won't have to worry about flow mods...headers could be a little overkill for a stock N/A car but I'd never hesitate to get rid of the factory exhaust in these cars. If you never plan on boosting it...get a 3" DP and be done with it.
Click to expand...

I might boost it next year, i'm atleast considering it. So i will get the headers just as an insurance for next year if i decide to. The car has 137,000 but mainly highway miles, and very well taken care of.
I think i will get this pcm:
PCM for Grand Prix GT v1.0: 3800 Performance
Anything special i need to do for it? Do i have to run 91+ octane for it?
Thanks
Now waiting on Dashzracing to reply back so i can get my led tail lights
 
Ewww on the LED tails...don't really care for them, but that's your call.

As for the PCM, yes you have to run 91+ octane because they increase the timing AFAIK.
 
bluegtp91 said:
Ewww on the LED tails...don't really care for them, but that's your call.

As for the PCM, yes you have to run 91+ octane because they increase the timing AFAIK.
Click to expand...
:th_laugh-lol3: i really only like the red smoke.

Ok thats something to consider since i drive a lot. Does it hurt MPG if i'm not getting on it?
 
bluegtp91 said:
It shouldn't hurt your MPG's at all...a tune will HELP MPG's if anything.
Click to expand...

ok thanks, looks like i'm going to have to way the odds.
Thanks you for your help, i think i atleast know what i'm going to do.
I will probably still get the PCM, headers and hv3
 


I also recommend a shift kit and some poly mounts.

Shift Kit from Triple Edge Performance and poly Upper Bushings and Inserts from Intense...as they aren't as soft as ZZP's.
 


Thank you we finally found a new guy that can navigate the site.

Your my hero.

Show these noobs whats up.
 
You would be really impressed that I found 3 different how to's on the shift kit.
And all the parts and where to buy them. All in about 10 minutes. :th_laugh-lol2:
 
Totally safe...especially the DHP you'd be buying from 3800 Performance. Best mail order PCM ever for the WBody.
 
You must log in or register to reply here.
Back
Top