Project 2003 GT - Ford Mustang Forum
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post #1 of 4 (permalink) Old 10-04-2014 Thread Starter
Redfire03's Avatar
Joined: Oct 2014
Location: Shreveport
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Project 2003 GT

Hey guys, I'm looking to eventually beef up my 2003 Mustang GT. By beef up, i mean likely rebuilding the engine and installing a forged rotating assembly. All I have done so far is Borla catbacks and a SR Cold Air Intake. I was looking at a Kenne Bell 2.1 Blower, most likely run 9psi. But anything else you guys can think of (I'm sure the answer to that is obvious). Thanks in advance.

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post #2 of 4 (permalink) Old 10-04-2014
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Joined: Mar 2014
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Welcome to the site!

Engine mods - all stock, trust me, wanna run??!!!
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post #3 of 4 (permalink) Old 10-05-2014
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Gears (3.73 since you'll be running a KB), brakes and suspension.

Suspension in and of itself is a pretty broad subject, so I guess what do you want to do with the car needs to be established. And also, do you have a budget for all of this?

Built engine with a KB on top can easily run $10K or more in parts alone, and getting the braking and suspension up to par so all that power can be useful won't be inexpensive either.

2001 GT Convertible
/1967 Coupe
All the usual bolt-on's /200 I6, C4

And a few Explorers too... 2008 4.0 XLT 4x2, 1996 XLT 5.0 4x2, 2003 Sport Trac XLT 4.0 4x4
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post #4 of 4 (permalink) Old 10-05-2014
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Welcome to the site. I also have a 2003 Mustang GT mine is convertible 5 speed. I did all my own upgrades on my car and was able to put a lot more into it than I expected. Here is a list of all my mods so far.

Accel Super Coils
ZEX Nitrous Kit
SCT Tuner
Trickflow 580 lift cams and valve springs
BBK Shorty headers
BBK Off-road x pipe
Catback Flowmaster American Thunder Kit
Ford Racing 4.10 Gears
BBK Strut Brace Bar
BBK Subframe connectors
BBK Rear upper and lower control arms
BBK Progressive Rate lowering springs (1.5 inch drop)
Eibach front and rear sway bar kits
Energy suspension offset rack bushings
Steeda rear shock tower brace bar
BBK 78 MM throttle body/plenum
BBK cold air intake
BBK under drive pulley kit
SLP line locker kit
Steeda Triax short throw shifter
Lokar flexible oil dipstick tube
Energy Suspension Motor and transmission mount kit
Pillar pod
Ford Racing Fuel Pressure Gauge
Wideband Air/fuel meter sensor and O2 sensor
Mallory fuel isolator
SCT flash racers edge tuning software
Trick Flow Twisted Wedge heads 38CC CNC Chambers
Ford Racing Oil Pump
Manley Piston Rings
Probe Forged Pistons
Ford Racing 39 LBS fuel injectors
Ford Racing fuel injector adapters
Ford Racing 90 MM Lightning MAF Sensor
Hood shock rod kit
Mach 1 Chin spoiler
Eagle Forged Rods
Main bearings
Rod bearings
Adjustable crank gears

Next up is lightweight flywheel, upgraded clutch set, and brake upgrades. Building is expensive but doing it yourself saves alot of money. I currently have $7,350 in my car. Good luck with your build.

2003 Mustang GT Convertible 5 speed - Mostly stock 4.6... 455 rwhp and 573 ft/lbs torque. (SOLD due to divorce)

Currently working on Coyote Swap of a 2004 GT
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