The Wilwood DynaPro 4R front drag brake kit trims rotating weight for drag cars that still see the street. GT48 directional-vane, Spec 37 alloy vented rotors measure 12.88 inch by 0.81 inch and weigh about 10.2 pounds each, mounted to lightweight forged aluminum hats on the factory hubs. Radial-mount DynaPro 4R four-piston aluminum calipers weigh roughly 4.1 pounds each with stainless pistons and quick-access pad pins, and BP-20 SmartPads give strong cold bite with fade resistance when hot. A minimum 17 inch wheel is required, and a stainless braided flexline kit is sold separately.
Specifications
| Type | Front drag brake kit (DynaPro 4R) |
| Position | Front |
| Caliper | Radial-mount DynaPro 4R, 4-piston aluminum (~4.1 lb ea) |
| Caliper Finish | Gray anodized (Type III) |
| Rotor | 12.88 in x 0.81 in vented, GT48 vane (~10.2 lb ea) |
| Pads | BP-20 SmartPads |
| Wheel Requirement | 17 in minimum |
| Note | Brake line kit sold separately |
| Quantity | 1 kit |
| Part Number | 140-14103 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2016-2017 | Ford | Mustang | EcoBoost |
| 2016-2017 | Ford | Mustang | EcoBoost Premium |
| 2015-2017 | Ford | Mustang | GT |
| 2016-2017 | Ford | Mustang | GT Premium |
| 2016-2017 | Ford | Mustang | Shelby GT350 |
| 2016-2017 | Ford | Mustang | Shelby GT350R |
| 2016-2017 | Ford | Mustang | V6 |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
