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

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

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