Need 5 Performance Modifications

Lcarder · Dec 12, 2006

I just purchased my first Mustang, a 99 GT 4.6 L Automatic. I'm looking for any and all suggestions for the top 5 performance related modifications that I could make and roughly what they would cost. I want to keep the car street legal and will not be racing it. I've already been doing some really nice appearance related things and will upload some pictures as soon as I can.

myponyrocks · Dec 12, 2006

For an auto I would say...

1. Predator or SCT programer 299-499 with a mail order tune from most sites (Acceleration via shift points, HP, niceties like turning off traction control idle RPM rang etc...)
2. Midpipe -100-700 installed (Depending on catted or non-catted) 5-15hp maybe?
3. Cat-Back -250-900 installed (Sound, minor gains)
4. Gears -400-900 installed (Acceleration) I think Autos need a tranny cooler with gears though?
5. Sub-Frame connectors - 300ish installed (Handling)

Duke309 · Dec 12, 2006

autos need a tranny cooler regardless of getting gears.

streethorse · Dec 12, 2006

You didnt say how much you want to spend, but here is my list which involves
spending as little as posible.

1. Magnaflow mufflers, weld in.........$225 installed
2. Add K&N air filter, remove rubber silencer.....$50.00
3. FRPP 70 mm TB..... $175.00
4. C&L intake plenum...$175.00
5. Steeda UD pullies.... $150.00

Thats exactly what I did,, makes for a very nice street stang.

san~man · Dec 12, 2006

Price no object:

1. Torque convertor
2. Shift kit (Jmod)
3. 4.10's
4. Programmer or chip to correct for gears
5. Transmission cooler

Those 5 will make the most difference for your auto, but you'll still need suspension mods to take advantage of the torque multiplication and your newfound loss of traction

DBMSTNG · Dec 13, 2006

1. supercharger
2. torque converter
3. exhaust
4. 3.73 gears
5. Jmod.

i've got 1-3 and 4 & 5 are comming in spring. with 1-3, the car is insane. i ran a 12.697 with only 1 and 3.

Mustang5L5 · Dec 13, 2006

13" front brakes......$350ish

Stang|ess · Dec 13, 2006

For an auto

1. tranny cooler
rest are in no particular order
gears: 4.10s no less
tuner: firmer shift points, and can adjust for the gears
jmod
torque convertor

san~man · Dec 14, 2006

Stang|ess said:
For an auto

1. tranny cooler
rest are in no particular order
gears: 4.10s no less
tuner: firmer shift points, and can adjust for the gears
jmod
torque convertor

Why not just plagarize what I said even more?

Haha, j/k

forum155pl · Dec 14, 2006

1. VT forged long block
2. KB blower
3. T56 tranny
4. 9" rear end
5. apc sticker

Stang|ess · Dec 14, 2006

san~man said:
Why not just plagarize what I said even more?

Haha, j/k

I dont read the replies, just the original post. and dont ask how i quoted, and responded to your post .

RoadconeTuning · Dec 14, 2006

since were all crazy

1. GT500 engine
2. Upper Pulley
3. JLT intake
4. Slicks
5. Driver Mod

now for reality
1. trans cooler
2. 4.10's, best mod ive made with my 5 speed
3. xcal2 + custom tune
4. Mac ProChamber
5. Flowmaster American Thunder Cat-back

streetstang03 · Dec 14, 2006

forum155pl said:
1. VT forged long block
2. KB blower
3. T56 tranny
4. 9" rear end
5. apc sticker

dont really need the 9" rear though

san~man · Dec 14, 2006

I think everyone is getting WAY ahead of themselves. Some of the replies probably aren't what the poster is looking for.

This thread is useless until he gives a budget on how much he's willing to spend.

DocG · Dec 14, 2006

san~man said:
I think everyone is getting WAY ahead of themselves. Some of the replies probably aren't what the poster is looking for.

This thread is useless until he gives a budget on how much he's willing to spend.

:OT: :Zip2:

Lcarder · Dec 18, 2006

Thanks for all the input. I had shoulder surgery last week and haven't turned on my computer since posting my questions. I should have asked what are the top 5 "bang for my buck" modifcations. It looks like there are things you can do for a couple of hundred dollars and then go up from there. I've already put on a Steeda CAI and X-pipes; I'm looking for my 3rd, 4th and 5th thing to do as soon as my shoulder heals enough.

BPMWare · Dec 18, 2006

The first thing I'd do is a take a real close look at your intake manifold and look for leakage or any trouble with coolant loss.

If haven't already read about it, Ford was involved in some litigation due to the fact that the plastic intake manifolds they put on some stangs were cracking. I remember reading on the forums here that it's not a matter of if your manifold will crack, it's a matter of when.

With that in mind, Ford will replace your manifold at their cost if the car is within 7 years of the warranty start date (you can sign up at form.com to learn your date). You might not even have this problem or maybe the previous owner already dealth with it. Just wanted to say something in case your warranty start date is soon to expire.

-BPM

007 · Dec 18, 2006

Whatever else you do, DO GEARS. 4.10s and a chip make the auto a whole new car. The stock 3.27s are way way way too long for the auto.

san~man · Dec 18, 2006

Lcarder said:
Thanks for all the input. I had shoulder surgery last week and haven't turned on my computer since posting my questions. I should have asked what are the top 5 "bang for my buck" modifcations. It looks like there are things you can do for a couple of hundred dollars and then go up from there. I've already put on a Steeda CAI and X-pipes; I'm looking for my 3rd, 4th and 5th thing to do as soon as my shoulder heals enough.

Go and look at my first post.

Yellow2002GT · Dec 18, 2006

Hmmm.... well I am no expert in the mods department but here we go....

1. 410 ford racing gear set ($400 with install) drop .5 tenths
2 PI 3200 Stall converter with tranny cooler..($1000 with install) drop another .5 tenths
3 Magnaflow catback ($400 with install) 15rwhp with dyno tune
4 Accufab plenum/TB combo... ($400.00, check "rpmoutlet" website) 10-15 rwhp with dyno tune
5. SCT Custom dyno tune ($350) Lets just say hand held tuners will do nothing till you tune your mods in first! With all my mods and a dyno tune it pull 58 more rwtq by 4100 and 48 more rwhp by 4300 and gained 25 hp and 40 tq at peak!

With those mods right there you will net another 30-35 rwhp and the car will launch harder than you can imagine with a set of MT DR's.....but what do I know....I only drive a 12.65 sec 1/4 mile NA auto 2v! If I were to do it all over again those whould be my first mods!

"ED"

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