The Wilwood Narrow Superlite 4R rear kit combines forged four-piston calipers with BP-10 compound pads and 12.88-inch rotors to upgrade rear braking on 1999–2005 Subaru WRX and 1999–2007 Impreza applications. FNSL4R kits retain full use of the OE parking brake, master cylinder output, and ABS while providing complementary style and performance when paired with larger front brake upgrades and suspension or wheel changes.
Wilwood Narrow Superlite 4R Rear Kit 12.88in Red 99-05 WRX / 99-07 Impreza