Ford Mustang Bullitt GT (2001) Wheel Fitment

Ford Mustang Bullitt GT (2001): 5x114.3 bolt pattern, 70.5mm center bore. Factory wheels: 17x8.0J F/R. Reference fitment ranges.

Bolt Pattern5x114.3
Wheel Bolt/Nut1/2\"x20 Nut
Center Bore70.5mm
Wheel Load Rating650–750 kg/wheel (Standard Passenger Car segment reference)
Year2001
CategoryCoupe

Verified by ANKUSI's Engineering Team — IATF 16949 & ISO 9001 certified forged wheel manufacturer, TÜV/SFI/VIA compliant. See our factory & certifications →

Wheel Size & Offset at a Glance

Ford Mustang Bullitt GT wheel size and offset comparison by configuration
ConfigurationWheel Size & Offset
Factory (OE)17x8.0J F/R
Flush Fitment18x9.0J at ET38 offset
Maximum Aggressive19x9.5J at ET35 offset

How to Read Wheel Offset & Measurements

Use these two references before ordering: the left diagram shows where each spec (PCD, center bore, offset, width and diameter) is measured on the wheel; the right diagram shows how positive, zero and negative offset shift the wheel face relative to the hub centerline.

Diagram showing wheel measurement points: centerline, center bore diameter, PCD, offset, rim width and diameter
Centerline, center bore, PCD, offset, width & diameter
Diagram comparing positive, zero, and negative wheel offset relative to the wheel centerline
Positive vs. zero vs. negative offset

ANKUSI Engineering Expert Advice

On a performance-oriented coupe, the wheel is one of the few components where shaving weight has a compounding effect — less rotational mass means less work for the brakes, the drivetrain, and the chassis on every input. A forged wheel gets there without compromising the strength margin the factory engineered in.

The Ford Mustang Bullitt GT runs a 5x114.3 bolt pattern, 70.5mm center bore, and a 17x8.0J, front and rear, wheel from the factory. Our Flush Fitment reference is 18x9.0J ET38, which tucks the tire under the fender lip on a stock-height Ford Mustang Bullitt GT. Our Maximum Aggressive reference is 19x9.5J ET35 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.

Ford Mustang Bullitt GT OE Wheel Specs

The 2001 Ford Mustang Bullitt GT (Coupe) uses a 5x114.3 bolt pattern with a 70.5mm center bore. Factory wheels are 17x8.0J F/R.

Why the factory spec works for most owners:

  • Balances ride comfort with everyday drivability
  • A commonly used size for this vehicle class, supporting parts and tire availability
  • Maintains clearance for the factory suspension and brake components
  • Provides stable, predictable handling across normal driving conditions

Flush Fitment

For a flush look with minimal rubbing, F/R 18x9.0J ET38 is the recommended starting point on a stock or mildly lowered Ford Mustang Bullitt GT.

Maximum Aggressive Fitment

F/R 19x9.5J ET35 is a more aggressive reference setup. Beyond this, expect rubbing under compression without fender rolling or camber correction.

5-Tier Configuration Options

A Factory-Style 17x8.0J ET45

Recommended setup: 17x8.0J ET45 | Economy impact: Negligible | Best for: Daily commuting, family use

Appearance: 7/10 | Comfort: 9.5/10 | Install difficulty: ★☆☆☆☆

Estimated cost: $450-800 (wheels + tires + install)

B Comfortable Upgrade 18x8.5J ET42

Recommended setup: 18x8.5J ET42 | Economy impact: -2 to -4% | Best for: Daily / street

Appearance: 8/10 | Comfort: 9/10 | Install difficulty: ★☆☆☆☆

Estimated cost: $1,950-2,550 (wheels + tires + install)

C Balanced / Flush Fit 18x9.0J ET38

Recommended setup: 18x9.0J ET38 | Economy impact: -4 to -6% | Best for: Street

Appearance: 8.5/10 | Comfort: 8/10 | Install difficulty: ★★☆☆☆

Estimated cost: $2,600-3,400 (wheels + tires + install)

D Aggressive 19x9.5J ET37

Recommended setup: 19x9.5J ET37 | Economy impact: -6 to -9% | Best for: Show / occasional track

Appearance: 9/10 | Comfort: 6.5/10 | Install difficulty: ★★★☆☆

Estimated cost: $3,900-5,000 (wheels + tires + install)

E Max Aggressive 19x9.5J ET35

Recommended setup: 19x9.5J ET35 | Economy impact: -8 to -12% | Best for: Show only

Appearance: 9.5/10 | Comfort: 4/10 | Install difficulty: ★★★★☆

Estimated cost: $4,800-6,200+ (wheels + tires + install)

Performance Comparison Matrix

MetricTier ATier BTier CTier DTier E
Wheel Spec17x8.0J ET4518x8.5J ET4218x9.0J ET3819x9.5J ET3719x9.5J ET35
Economy ImpactNegligible-2 to -4%-4 to -6%-6 to -9%-8 to -12%
Appearance7/108/108.5/109/109.5/10
Comfort9.5/109/108/106.5/104/10
Install Difficulty★☆☆☆☆★☆☆☆☆★★☆☆☆★★★☆☆★★★★☆
Cost Range$450-800$1,950-2,550$2,600-3,400$3,900-5,000$4,800-6,200+
Best ForDaily commuting, family useDaily / streetStreetShow / occasional trackShow only

Real-World Reference Cases

The examples below are compiled from typical ANKUSI customer configurations and are labeled as reference cases, not individually verified real-world builds.

Case 1: Daily Driver (Factory-Style)

Profile: Everyday driving, prioritizes comfort and low running cost.

Setup: 17x8.0J ET45

Cost: ~$620

Outcome: Minimal visual change, ride and fuel economy essentially unaffected.

Case 2: Balanced Enthusiast (Balanced / Flush Fit)

Profile: Wants a sportier stance without sacrificing daily usability.

Setup: 18x9.0J ET38

Cost: ~$3,000

Outcome: Noticeable visual upgrade, fuel economy drop within the expected range.

Case 3: Show Build (Max Aggressive)

Profile: Built primarily for shows or occasional track/show use.

Setup: 19x9.5J ET35

Cost: ~$5,500

Outcome: Maximum visual impact; daily comfort and fuel economy are heavily compromised, physical test fit required before production.

Decision Guide

1
What's your primary use? Daily commuting → Tier A/B. Weekend street driving → Tier B/C. Show or occasional track use → Tier D/E.
2
What's your budget? Under $800 → Tier A. $800-3,400 → Tier B/C. $3,400+ → Tier D/E.
3
How much does fuel economy matter? Very important → Tier A. Somewhat important → Tier B/C. Not a priority → Tier D/E.
4
Still unsure? Tier C (Balanced / Flush Fit) is the default choice for most Ford Mustang Bullitt GT owners.

Offset & Backspacing Reference

Backspacing is calculated as wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance):

  • OE: 17x8.0J ET45 → ~6.27″ backspacing
  • Flush: 18x9.0J ET38 → ~6.5″ backspacing
  • Max: 19x9.5J ET35 → ~6.63″ backspacing

Want to check a different width or offset before you order? Use our Offset & Backspacing Calculator to solve the numbers yourself, or looking for your exact Ford spec, or want a wheel built to a custom offset for your Ford Mustang Bullitt GT? Contact ANKUSI with your bolt pattern and offset target and we will confirm the correct forged wheel spec for your build.

Frequently Asked Questions

What bolt pattern (PCD) does the Ford Mustang Bullitt GT use?
The 2001 Ford Mustang Bullitt GT uses a 5x114.3 bolt pattern.
How many lug bolts does the Ford Mustang Bullitt GT use?
The Ford Mustang Bullitt GT uses a 5-lug bolt pattern (5x114.3), so you need a 5-lug forged wheel to bolt straight on.
What is the center bore size on the Ford Mustang Bullitt GT?
The Ford Mustang Bullitt GT's center bore is 70.5mm. If an aftermarket wheel has a larger center bore than this, hub-centric rings are recommended so the wheel centers on the hub itself rather than relying on the lug bolts alone.
What size are the factory (stock) wheels on the Ford Mustang Bullitt GT?
Factory wheels on the Ford Mustang Bullitt GT are 17x8.0J F/R.
What is the biggest wheel size I can fit on my Ford Mustang Bullitt GT without rubbing?
The most aggressive fitment we recommend without fender work is 19x9.5J at ET35 offset. Going beyond this typically causes rubbing under compression unless you roll the fenders or add camber correction.
What does a flush wheel fitment look like on the Ford Mustang Bullitt GT?
For a flush look with minimal to no rubbing, we recommend 18x9.0J at ET38 offset as a starting point on a stock or mildly lowered Ford Mustang Bullitt GT.
Do I need wheel spacers for my Ford Mustang Bullitt GT?
No. ANKUSI forges each wheel to your exact target offset, including the flush or max specs above, so you get the correct fitment without stacking spacers. Spacers are typically only used to push out an existing OE-offset wheel without replacing it, which isn't necessary when you're ordering a custom-offset forged wheel.
How do I calculate wheel backspacing for my Ford Mustang Bullitt GT?
Backspacing (in inches) = wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance). For example, the flush spec above works out to roughly 6.5" of backspacing.
What's the difference between wheel offset and backspacing?
Offset is the distance in millimeters from the wheel's true centerline to its mounting face (positive offset pulls the wheel in, negative pushes it out). Backspacing is the distance in inches from the mounting face to the back edge of the wheel barrel. They describe the same fitment from two different reference points, which is why ANKUSI lists both above — some shops and tuning guides quote offset, others quote backspacing.
Can I run staggered wheels (different sizes front and rear) on my Ford Mustang Bullitt GT?
The Ford Mustang Bullitt GT runs the same wheel size front and rear from the factory, so staggered fitment is not required. ANKUSI can still forge a staggered set (wider rear) on request if you want a more aggressive stance.

Wheel Installation Reference: Torque, Thread & TPMS

Thread & Fastener: M12x1.5, conical-seat lug nut.

Factory Torque Spec: 136 Nm (100 ft-lb). Covers most Ford passenger cars and crossovers (Fusion, Focus, Escape and similar) on M12x1.5 studs.

TPMS: Vehicles built before the 2008 model year were not federally required to carry factory TPMS in the US, though many manufacturers adopted it earlier; verify whether your specific build has TPMS before ordering sensor-compatible wheels.

Tire Pressure: Always set tire pressure to the value on your vehicle's tire placard (driver's doorjamb or glovebox), not the max PSI printed on the tire sidewall — this is trim- and tire-size-specific and stays the same reference point when you switch to a different wheel and tire combination.

Reference data compiled from published OEM service specifications and cross-checked against independent repair sources; always confirm against your owner's manual or door-jamb placard before installation.

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