VTT “Ultimate” Front Drag Brake Kit

E-Series & F-Series BMW

Looking to make your E or F-Series BMW faster in the 1/4-mile or 1/2-mile?

Want to run 17″ or even 15″ front wheels?

Want to drop OVER 54 lbs of unsprung weight off the nose of the car while improving weight transfer — without breaking the bank?

The VTT Ultimate Front Drag Kit is engineered specifically for straight-line performance. This system allows you to run the wheel and tire combination needed to lower ETs while dramatically reducing unsprung and rotational mass compared to the factory steel front brake setup.

Less weight.
More clearance.
Better weight transfer.
Faster passes.

Plug-and-Play Design

Complete bolt-on system using genuine VTT components:

• VTT HD Spec 37 Rotors

• Genuine VTT 4-Piston or 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

Pad compatibility:

• 4-Piston Dynapro Pad Style 7812

• 6-Piston Dynapro Pad Style 6712

More aggressive pad compounds are available from multiple manufacturers to tailor braking performance to your application.

15” Wheel Fitment Notes

E-Series:
✔ Allows 15″ front wheel fitment with no modifications.

F-Series (F20, F30, etc.):

• May require minor grinding on two control arms to clear 15″ wheels.

• Proper wheel offset selection is critical.

• Excessive negative offset may require spacers to clear the inboard strut.

Careful wheel fitment planning is recommended.

Fitment Guide – Front

Compatible with:

F-Series

• F20 / F20 LCI

• F21 / F21 LCI

• F22 / F22 LCI

• F23 / F23 LCI

• F30 / F30 LCI

• F31 / F31 LCI

• F34 GT / F34 GT LCI

• F35 / F35 LCI

• F32 / F32 LCI

• F33 / F33 LCI

• F36 Gran Coupe / LCI

E-Series

• E81

• E82

• E87 / E87 LCI

• E88

• E90 / E90 LCI

• E91 / E91 LCI

• E92 / E92 LCI

• E93 / E93 LCI

Configuration

HD Version
Designed for:

• Normal street use

• Drag racing duty

Available in:

• 4-Piston Configuration

• 6-Piston Configuration

Weight Savings

Per Side Comparison

OEM Steel Front Setup:
46 lbs per side

VTT HD Spec 37 Kit:
16.1 lbs per side

✔ 53.7 lbs total front unsprung weight savings

Component Weights

• HD Spec 37 Rotor: 9.0 lbs

• VTT 4-Piston Caliper: 3.6 lbs

• VTT 6-Piston Caliper: 5.1 lbs

• Rotor Hat: 1.0 lb

• Pads (per side): 1.0 lb

Important Disclaimer

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

They are NOT designed for heavy braking environments such as:

• Auto-X

• Road Racing

• Track Days

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:

• Only 30–50% braking effectiveness

• Pad glazing

If glazing occurs:

• Remove the rotor

• Sand the pads

• Re-bed properly

Your brake kit includes a bedding instruction card. Follow it precisely.