Essex Designed AP Racing Radi-CAL Enduro Brake Kit - Front CP9668 (04-21 STI)

Complete front Essex Designed AP Racing Radi-CAL Competition Brake Kit for the Subaru WRX STI.

• Features AP Racing CP9668 Radi-CAL six piston calipers, uses 25mm thick pad
• 355x32mm, 72 vane AP Racing disc
• Saves roughly 9 unsprung lbs. from nose vs. OEM brakes
• Every component designed to resist the heat of extended track sessions
• Pistons sized properly to allow for seamless integration with OEM master cylinder and ABS system
• Designed to work with OEM rear brakes

Advantages Over OEM Brake System

Our CP9668/355mm Radi-CAL Competition Brake Kit offers our customers the following advantages over the stock brake system:

• Eliminates approximately 9 lbs. of unsprung weight from the car's nose
• AP Racing Radi-CAL calipers are the stiffest, lightest, and most technologically advanced calipers available at any price
• CP9668 calipers use a 25mm (1 inch) thick, commonly available brake pad shape
• Ventilated, domed back, stainless steel pistons keep heat out of the brake fluid and provide an ultra-firm pedal
• Mitigation of pad knockback via anti-knockback springs behind the caliper pistons
• Anodized caliper finish that is resistant to wear and deterioration at elevated temperatures
• Stainless steel caliper hardware for a long caliper service life under frequent pad change conditions
• High temperature, low drag seals that will hold up to track temps= less rebuilding and longer service life
• No dust boots to burn up
• Simple pad change with two bolts or quick-change spring clip, no caliper removal required
• Lifetime professional caliper rebuilding support by Essex (at a fee)- pull off your calipers, send them to us, we clean, inspect, and rebuild them
• Available disc burnishing service ensures that your kit arrives ready to be installed and driven hard immediately
• Championship winning, 72 vane, fully floating, AP Racing J Hook endurance racing discs with 12 attachment points to hat
• Anti-knockback/anti-rattle disc attachment hardware
• Replacement iron disc rings available at an extremely competitive replacement price
• Disc metallurgy specifically designed to handle the temps typically seen on track offer a long service life
• Highest quality, Spiegler stainless steel brake line with clear sheath that reduces compliance over OEM rubber design