2003 Mustang GT question - Ford Mustang Forum
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post #1 of 6 (permalink) Old 06-27-2010 Thread Starter
yeahyouknwit's Avatar
Joined: Jun 2010
Location: Rehoboth Beach
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2003 Mustang GT question

Hey guys I'm new to this forum and have a few questions. Little background on my car first. It is a 2003 GT vert all stock minus flowmasters and I removed the air silencer. She has 80,000 miles on her. I am the original owner and have had the car since oct '02. I am interested in starting to mod the car but am not looking to spend too much. What are some cheap mods I can do to the car to make everyday driving more spirited?

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post #2 of 6 (permalink) Old 06-27-2010
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rear gears would make the biggest difference for the price, typically 3.73 if you do a lot of highway driving, 4.10s if not so much

cold-air is nice

so are underdrive pulleys

dampers and springs will change how you can take corners making it a little more "spirited" and will also make it look more aggressive

headers, midpipe, and catback will deepen your grunt and give a modest hp upgrade as well

2004 White V6 - sold
2000 Green GT - totaled
1999 Green V6 'Vert - sold
1990 Black GT - sold
1990 Red LX - sold
2003 Grey GT - sold
1991 Blue LX 5.0 - really more of a pile of parts at this point...
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post #3 of 6 (permalink) Old 06-27-2010
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A cold-air kit and tune would be a good start and something you can do yourself with some basic tools.

2007 Vista Blue GT, tu-tone Tuxedo Black. Turbonetics turbo kit ,tru-fiber ramair hood, upr adjustable upper, tubular lowers,Pypes muffler delete, wms stealth hood-pins, roush rear-window louvers, JLT Carbon Fiber radiator cover. 18" staggered Stealth Black Godspeed Omegas, MGW short throw shifter, Oracle blue halo's

1987 Buick GN 46k
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post #4 of 6 (permalink) Old 06-28-2010
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K&N filter right away or a full CAI Kit.
Gears 3.90 or 4.10 (I like 4.10), wakes the beast in your car.
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post #5 of 6 (permalink) Old 06-28-2010
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Welcome to AFM. We are glad you are here, but there's one small problem - This question comes up about two or three times a week.
Since you're new, you get a pass of course.

Please read this thread:

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post #6 of 6 (permalink) Old 06-29-2010 Thread Starter
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Joined: Jun 2010
Location: Rehoboth Beach
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Thanks for the heads up. I should use the search button more. But since the thread is already here might as well ask a few more questions . My end goal is to strap a kb 2.1 on. I was goung to get a k&n but i read somewhere that the KB moves the location of the TB slightly and there for some CAI will not fit. Untill I save up the money for the KB I think i am going to add parts they I will not have to change out. I have been thinking about a H pipe because I hear it sounds the best with the flowmasters I have on. I would like o/r but I have to pass inspection so maybe a catted H.
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