boneheadzz

Hey all!
Finally got my first LS powered car. I've been wanting a manual 05 or 06 GTO for years but since I needed a 'family' car for me, the wife and kids, I bought a used, very responsible, non hotrod Grand Prix GXP.
Man I love this car! Comfy and loaded up but plenty of power, handling and some serious stopping power. How did I live with out this???

So, now I need to fix some little things and start hopping this thing up. What are some of the quick and easy mods that can be done with this car?
Thanks.
Mike

baltsk8er69

iTrader: (1)

Air box mod. Free with a dremel.

batboy

iTrader: (6)

Welcome! I pick up a 2006 GXP tomorrow, it'll be mainly the wife's car. I already have a modded GTO.

The best bang for the buck for GXPs are ZZP downpipe, better air intake, and tune.

crich88848

Flip the motor mount. It's free and makes a difference. Then id say exhaust intake Tranny cooler and a tune.

06MonteSS

Cold Air Inductions cold air intake, and a tune!

I can hook you up with both!

boneheadzz

What part of the airbox should be cut out? Don't want to swiss cheese the thing unless its worth it and its not totally visible from the top.

baltsk8er69

iTrader: (1)

You can buy a k&n drop in and do this
https://ls1tech.com/forums/ls4-performance/1187683-modified-gxps-air-box.html

boneheadzz

Was there a noticeable difference after this swap?

baltsk8er69

iTrader: (1)

No. But it sounds better lol. That was very ricer. The issue with ls4s is the underhood temps. So just don't use a short ram intake.

Cory1750

shift kit for 40-70 bucks. Extremely easy, I have no mechanical ability and was able to do it. and some magnets for the transmission fluid pan. Probably need to change the fluid anyway. Use dexron VI for the fluid. If you want to add some pep probably just get a diablo intune and use the built in tune.

This car takes 93 fuel, don't use 87. If you didn't know that ahead of time, sorry.

Aftermarket parts, I can recommend the Cold Air Inductions intake. I got mine from diablewtune.com. The guy who runs it actually already posted in this thread too. The cheapest you will find it is on his site. He can also do custom tunes with him, I think I might get started on that today or this weekend. Not too far you can go with mods though without doing some real tranny work though, and that gets pricey. Not sure what you are looking to do there.
You can flip the motor mount as well, but I can't say I noticed too much of a difference.

baltsk8er69

iTrader: (1)

Isn't that just the luck lol

boneheadzz

Has someone done a tutorial on the motor mount flip? I kinda eyeballed it earlier and I don't see how its flipped around. Looks like a fork on one end and a bushing on the other. I'm guessing its the upper mount everyone flips?

Barnett92

iTrader: (1)

Yep that top one, what I did was take that bolt out, then spray some lube IE wd40 into the square rubber mount. Then stick the bolt in there and torque the nut on it. Then take your rachet and wrench and turn them both the same way and it'll roll over. Then put your mount back in and there you have it! You might have to pull your motor forward like I did. That was annoying!

Barnett92

iTrader: (1)

It's a 15mm bolt and nut too

91parkave

iTrader: (4)

Just get a poly mount and be done with it.

boneheadzz

I see zzp has some mounts for the 3800 that some people use on their 5.3 cars. Anyone else making these poly mounts?

91parkave

iTrader: (4)

Zzps would be easier to install I think there a 2 piece design bushing intense-racing.com has one piece ones but there a little more challenging to install. Use some type of grease and a hammer to get that bushing in

CAMyers720

Hey its nice to see my Old post under my old screen name is helping people... I thought I had messed up that old S/N... I guess I should try to log into that one again