Thread: 3800 Pontiac Grand Prix need more Power

2008 is a can bus system, thus not tune-able. Its a year only thing.

1997-2007 cars can be tuned because they are not can bus, though 06-07 have to use a 04-05 PCM for it to work.

So your pretty much outta luck there.

Originally Posted by Myers1985

if my 3800 can not be tuned or top swap'd then why is there a giant forum with a parts list and how to do it. I just got back from the Shop with my list and my guys are telling me it's the best way to go safely

READ!!!!!! We would not say it was impossible unless it was.

Originally Posted by blackspike2710

READ!!!!!! We would not say it was impossible unless it was.

This info is not well known to most and is not really a hot topic around here. Its not posted in many spots.

Why do you have to yell at everyone to read this and that? Perhaps post a link from time to time or actually share some knowledge you have stored in your peanut sized brain.

Originally Posted by Fivefingerdeathpunch

This info is not well known to most and is not really a hot topic around here. Its not posted in many spots.

Why do you have to yell at everyone to read this and that? Perhaps post a link from time to time or actually share some knowledge you have stored in your peanut sized brain.

Not being rude, just trying to get the point across. The guy just joined today and hasn't done any research. And although the topic may not be common, it has been discussed enough to be well known and easy to find.

I forgot that the 08s were can bus and thought it was only the gxp's, it's not that widely known...

if you put a sc on you still cant tune it.

im pretty sure you could do headers and rockers with out a tune. and pick up a few hp, not enough to be worth it im thinking tho.

or trade it in for something older, like a few have done here. sounds f'ed up but thats the deal.

Get an intake of whatever you want...doesn't really matter.

Buy some Speed Daddy headers from EBay...

Get an HV3 upper insert from ZZPerformance...

You can also get some 1.8:1 roller rockers from any vendor as well for some extra top end performance.

But seriously guy, click the link in my sig and read...do some research.

Did they make supercharged grand prixs in 08? If they did then you could do a motor swap with the supercharged motor and use that PCM, you'll also want the trans from that car.

Originally Posted by Swiggles

Did they make supercharged grand prixs in 08? If they did then you could do a motor swap with the supercharged motor and use that PCM, you'll also want the trans from that car.

Nope. N/A or V8 only.

Wow sounds like either way your screwed. Not really to much to be done to the 3100 in that SE.... try selling the SE and get a GTP maybe.