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Old 02-23-2011, 06:48 PM   #1
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03 mustang GT

Wuz up gentlmen, this is my first post in the section...ive owned a 04 3.9 mustang the 4 years...i finallly stepped up to a 03 GT..I compeltly modded the v6...but i have never modded a v8...my question is where do i start...the car is totally stock...where do i start first....CIA?...exhaust?...looking for the best bang for the buck...ive always been told v8s get more out of there mods...im anxious to find out...just looking for direction to start in
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Old 02-23-2011, 07:02 PM   #2
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Quote:
Originally Posted by Zebs5408
Wuz up gentlmen, this is my first post in the section...ive owned a 04 3.9 mustang the 4 years...i finallly stepped up to a 03 GT..I compeltly modded the v6...but i have never modded a v8...my question is where do i start...the car is totally stock...where do i start first....CIA?...exhaust?...looking for the best bang for the buck...ive always been told v8s get more out of there mods...im anxious to find out...just looking for direction to start in
Congrats! Get gears and a tune.
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Old 02-23-2011, 08:07 PM   #3
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Re: 03 mustang GT

its a 5 speed...i had 373 gears on my 3.9...i thought 373 gears came stock on the gt? what size gears do i have...i can upgrade to 410 but ive always heaard 373 best suit a manual...410 suits best for an auto...so they say
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03' Mustang GT (20" Cobra R's, 40 series Flowmasters)
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Old 02-23-2011, 08:44 PM   #4
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Re: 03 mustang GT

I have 410's in my 2002 with a 5 speed. I would have been dissapointed with anything less. I would do the gears and tune
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Old 02-23-2011, 09:21 PM   #5
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Cai is pointless on a new edge. I one for sale if you want it. I am putting the stock airbox back on
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Old 02-23-2011, 09:33 PM   #6
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Re: 03 mustang GT

Quote:
Originally Posted by Zebs5408 View Post
its a 5 speed...i had 373 gears on my 3.9...i thought 373 gears came stock on the gt? what size gears do i have...i can upgrade to 410 but ive always heaard 373 best suit a manual...410 suits best for an auto...so they say
you will have 3.27's if they are stock
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Old 02-23-2011, 09:48 PM   #7
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Re: 03 mustang GT

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you will have 3.27's if they are stock
Thanks bro do not know that...410s it is
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Old 02-23-2011, 09:59 PM   #8
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Re: 03 mustang GT

Zebs! get you some gears mannnn
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Old 02-23-2011, 10:36 PM   #9
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3.90s for a 5 speed. Trust me
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Old 02-24-2011, 03:24 PM   #10
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Re: 03 mustang GT

What kinda exhaust set up should i go with...i know what sounds good on a v6...not sure on an 8...im thinking 40 series flowmasters? or 44? def flows though...and o/r h pipe
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Old 02-24-2011, 03:57 PM   #11
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Quote:
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What kinda exhaust set up should i go with...i know what sounds good on a v6...not sure on an 8...im thinking 40 series flowmasters? or 44? def flows though...and o/r h pipe
Sounds like a good option
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Old 02-24-2011, 05:07 PM   #12
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Re: 03 mustang GT

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Originally Posted by Zebs5408 View Post
What kinda exhaust set up should i go with...i know what sounds good on a v6...not sure on an 8...im thinking 40 series flowmasters? or 44? def flows though...and o/r h pipe
Have you heard borla stingers on a 03?

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Old 02-25-2011, 05:08 PM   #13
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Re: 03 mustang GT

borla sounds ok...sorry im just a flowmaster fan...just not sure to go with the 40 series or the 44's
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03' Mustang GT (20" Cobra R's, 40 series Flowmasters)
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Old 02-25-2011, 05:13 PM   #14
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Re: 03 mustang GT

mufflers are subjective, listen and go with what you like.

You can do mostly all the same mods you would do on the V6 but the GT also is helped by a new upper intake and you can do other such things to help it out.
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Old 02-25-2011, 09:20 PM   #15
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Gears for sure. I have 4.10s and love them. Check out the magnaflow magnapack for exhaust. They sound nasty
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