VTT F9X X3M / X4M Ultimate Lightweight Front Brake Kit

Looking to make your F9X X3M or X4M faster in the 1/4-mile or 1/2-mile?

Want to run 17” front wheels?

Want to drop nearly 75 lbs of unsprung weight from the front of your SUV — while dramatically reducing rotating mass?

The VTT F9X Ultimate Lightweight Front Brake Kit is engineered specifically for high-power straight-line performance. This system allows you to run the wheel and tire setup required to lower ETs while putting the heavy factory front brake system on a serious diet.

Less rotating mass.
Less unsprung weight.
Better weight transfer.
Faster acceleration.

True Plug-and-Play Design

Complete bolt-on system using genuine VTT components:

• VTT Custom 13″ HD Rotors

• Genuine VTT 6-Piston Calipers

• VTT Street or Race Brake Pads

• DOT-Approved Brake Lines

• VTT CNC 7075 Rotor Hats

• VTT CNC Brackets

• Brake Sensor CEL Eliminator Harness

We only offer the 6-piston configuration for the F9X platform due to vehicle weight and braking demands.

Pad Style:

• 6-Piston Dynapro Pad Style 6712
  (Multiple aggressive compounds available from various manufacturers.)

Fitment

• F97 X3M

• F98 X4M
  (All variants supported)

Weight Savings Breakdown

FRONT (Per Side)

Factory:

• Caliper: 18.3 lbs

• Rotor: 36.2 lbs

• Total: 54.5 lbs

VTT:

• Caliper + Bracket: 5.3 lbs

• Rotor + Hat: 12.8 lbs

• Total: 18.1 lbs

✔ 36.4 lbs savings per side
✔ 72.8 lbs total front unsprung savings
✔ 46.8 lbs rotating weight reduction

REAR (Per Side)

Factory:

• Rotor: 18 lbs

• Caliper: 15.1 lbs

• Total: 33.1 lbs

VTT:

• Rotor + Hat: 12.4 lbs

• Caliper: 8.8 lbs

• Total: 21.2 lbs

✔ 11.9 lbs savings per side
✔ 23.8 lbs total rear unsprung savings
✔ 11.2 lbs rotating weight reduction

TOTAL VEHICLE SAVINGS (Front + Rear)

✔ 96.6 lbs total unsprung weight reduction
✔ 58 lbs total rotating weight reduction

This is a massive performance improvement for a heavy AWD SUV platform.

Important Disclaimer

VTT HD kits are designed for street use and drag racing only.

They are NOT intended for:

• Auto-X

• Road Racing

• Sustained heavy braking track use

Always operate the vehicle within your limits.

Bedding Procedure – CRITICAL

Brake pads must be properly bedded to achieve full braking performance.

Failure to properly bed pads may result in:

• 30–50% braking effectiveness

• Pad glazing

If glazing occurs:

• Remove rotors

• Sand pads

• Re-bed properly

Your kit includes a bedding instruction card. Follow it exactly.

• Free US shipping on orders over $250.
• Free pickup at our Dallas shop, usually ready within 24 hours.
• Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
• Want it installed? Book the install at thegbmotors.com.

Full details are on our shipping and returns page.