03 GT Mods Advice Needed

03GTMichigan · Apr 8, 2004

I have an 03 GT stick, with Diablo chip, Flowmaster Force II cat back, K&N fliter and silencer removed.
I would like to add the following any need some feedback on what is recommended:

1) Underdrive Pullies? BBK? Aluminum?

2) Motorvator TB spacer - eveyone says any added space at all will help?

3) Gear - 3.73

4) Body part - wondering if they make a window cover for the C- piller (back little window (scoop style) like on the old mustangs.

Thanks for your help in advance.

WhiteDevil69 · Apr 8, 2004

03GTMichigan said:
I have an 03 GT stick, with Diablo chip, Flowmaster Force II cat back, K&N fliter and silencer removed.
I would like to add the following any need some feedback on what is recommended:

1) Underdrive Pullies? BBK? Aluminum?

2) Motorvator TB spacer - eveyone says any added space at all will help?

3) Gear - 3.73

4) Body part - wondering if they make a window cover for the C- piller (back little window (scoop style) like on the old mustangs.

Thanks for your help in advance.

They have the old GT 500 scoops, you can find them if you ask around, maybe make a thread just about them and someone will send you a link, cant find it right now or i would post it. Gears, get some FMS 3.73's if you plan on making 300+ rwhp, otherwise get 4.10's for sure!. Pullies do alluminum or nothing, not worth it otherwise. Dont know anything bout the tb spacer, someone else will help yah there.
Hope this helps

WhiteDevil69 · Apr 8, 2004

03GTMichigan said:
1) Underdrive Pullies? BBK? Aluminum?

QUOTE]

If your gonna get the pullies i'd recommend a Steeda Timing Adjuster as well.

00VERT GT · Apr 8, 2004

no supercharger???

WhiteDevil69 · Apr 8, 2004

00VERT GT said:
no supercharger???

I just started a good 3 months ago moding the stang and came to a quick conclusion that all the basic 5-10 hp attachments were all adding up in cost to a blower but staying far far away from the total hp output. Just depends on what you want, if you goal is truely for max HP then get your exhaust done and then start saving for the blower, thats what im doing now.

cronin49 · Apr 8, 2004

WhiteDevil69 said:
I just started a good 3 months ago moding the stang and came to a quick conclusion that all the basic 5-10 hp attachments were all adding up in cost to a blower but staying far far away from the total hp output. Just depends on what you want, if you goal is truely for max HP then get your exhaust done and then start saving for the blower, thats what im doing now.

U B right about that. Look at my sig. I spent $2300 parts and labor for my performance mods, another $1800 on eye candy. Thats $4100. All in 8 months mind you. I wouldn't change a thing though. Next is the supercharger, I hope before 2004 runs out. My car looks fine, I get hollars and compliments every day I'm out with the top down. Sounds mean and is pretty quick for a ' VERT. 13.88 @ 102.7. Crappy 60' times, around 2.4 . I am new to the strip though.

StngStr · Apr 8, 2004

$100 for used Steeda Timing Adjuster
$100 for used Steeda Pulleys
$400 ($140 parts, $260 for labor) 4.10 gears (don't waste your time w/3.73's)
$150 off road X-pipe for power....o/r H pipe to sound good w/your flows
$100 used Steeda Tri-Ax/Pro 5.0/UPR Blue Thunder Shifter
$300 Drag Radials

EQUALS high 12 second car........

streetstang03 · Apr 8, 2004

I say gears and C&L Plenum/TB. I wish I would have done the gears 1st, but now I think its better so I dont have to pay for a ECU reflash twice. Im just waiting to order everything at once and get it done at the same time so I only have to have 1 reflash.

Bullitt03 · Apr 8, 2004

Definately Gears first i put 3.73's in 2 days after i bought mine and i loved them

jeff1414 · Apr 8, 2004

Bullitt03 said:
Definately Gears first i put 3.73's in 2 days after i bought mine and i loved them

hognutz · Apr 8, 2004

gears and go 4.10's if staying na.

Im my world this is how you should do a car for power if staying na(exhaust is not listed because most do that regardless). I just never have messed with cai and pullies and crap like that before.
1.gears
2.headers
3.intake or plenum/tb
4.cams*
5.heads*

*best if done together to minimize labor.

each one of these is with exception of the intake will make the car feel like a diffenet car almost. CAI, pullies, etc is stuff you do after you run out of real mods in my book. everyone does opposite what I like to do. then agian I don't pay people to work on my car so I only have the part cost to worry about.

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