This Wilwood rear big brake kit pairs forged Narrow Superlite 4R four-piston calipers with 12.88 inch rotors and BP-10 compound pads to add rear stopping power on Subaru and Saab 9-2X platforms. It retains full use of the OE parking brake, master cylinder output and ABS, and is engineered to complement 13 inch and larger front upgrades. This configuration ships with slotted rotors and black calipers.
| Type | Forged Narrow Superlite 4R (FNSL4R) rear big brake kit |
| Position | Rear |
| Caliper | 4-piston forged FNSL4R, radial mount, black finish |
| Rotor | 12.88 in, slotted, GT48 curved-vane iron |
| Pads | BP-10 compound |
| Parking Brake | Retains OE parking brake, master cylinder output and ABS |
| Minimum Wheel | 17 in |
| Included | Calipers, rotors and hats, mounting brackets, pads, hardware |
| Part Number | 140-12878 |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006 | Saab | 9-2X | 2.5i |
| 2005-2006 | Saab | 9-2X | Aero |
| 2005 | Saab | 9-2X | Linear |
| 2001-2002 | Subaru | Forester | L |
| 2001-2002 | Subaru | Forester | S |
| 2008 | Subaru | Forester | Sports 2.5 XT |
| 2006-2008 | Subaru | Forester | X |
| 2006-2008 | Subaru | Forester | X L.L. Bean Edition |
| 2003-2005 | Subaru | Forester | XS |
| 2005 | Subaru | Forester | XS L.L. Bean Edition |
| 2004-2005 | Subaru | Forester | XT |
| 2006-2008 | Subaru | Forester | XT Limited |
| 2005 | Subaru | Forester | XT Premium |
| 2006-2007 | Subaru | Impreza | 2.5i |
| 2004 | Subaru | Impreza | Outback |
| 2005-2007 | Subaru | Impreza | Outback Sport |
| 1999-2003,2005 | Subaru | Impreza | RS |
| 2004 | Subaru | Impreza | TS |
| 2002-2005 | Subaru | Impreza | WRX |
Shipping: In-stock orders placed before 4 PM EST ship the same day, with standard, expedited, and overnight options available at checkout. Backordered items ship as soon as our distributor restocks — contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
