AP Racing Essex Designed Rear CP9451/340mm Radi-Cal Competition Brake Kit Subaru WRX | STI 2015-2021

Complete rear AP Racing by Essex Radi-CAL Competition Brake Kit for Subaru WRX/Sti 2015-2021-Current

Advantages Over OEM Brake System:

• AP Racing Radi-CAL calipers are the stiffest, lightest, and most technologically advanced calipers available at any price
• Calipers use a 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 one bolt, 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, 60 vane, fully floating, AP Racing J Hook racing discs
• Anti-knockback/anti-rattle disc attachment hardware
• Replacement iron disc rings available at an extremely competitive replacement price ($329 each).
• 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

• One pair AP Racing CP94X Radi-CAL Pro5000R racing calipers
• One pair 340x28mm AP Racing CP8972, 60 vane, J Hook racing discs, with fully floating 6061 hard anodized aluminum hats and attachment hardware
• One pair caliper mounting brackets and hardware
• One pair Spiegler Stainless Steel Brake Lines with abrasion resistant coating
• Detailed installation instructions
• Brake pads are NOT included with our system. Racing brake pads are a highly personal choice. Many manufacturers include a set of inexpensive, low quality pads with their brake kits. Rather than artificially inflating the price of our system with a set of pads you probably don't want anyway, we've decided to remove the cost from our system and allow our customers to choose the pads that best suit their needs/wants. When purchasing our kit, you are able to choose one set of front pads at a substantial discount vs. the retail price. Please use the drop-down menu to select your pads.
• Pad Tension Clips (frequently referred to as anti-rattle clips) are NOT included with our Competition Kits, but we do offer them as an option if you're concerned about NVH. One of the great benefits of the AP Racing calipers in our system is that they are designed to accommodate pads from a wide range of manufacturers. Each manufacturer builds their pads with specifications that are slightly different. As such, pads from different manufacturers, or even from different batches, won't always fit in the calipers in exactly the same manner. Some pads are a snug fit, while others may rattle around and produce noise. The Essex Designed Pad Tension Kit is designed to dramatically reduce pad movement inside the caliper, along with just about all resulting noise.

• Retains OEM parking brake functionality
• Features AP Racing CP94X Radi-CAL four piston calipers
• 340x28mm, 60 vane AP Racing Discs with patented J Hook pattern
• 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 our front Essex/AP Racing Competition BBK

• Subaru WRX | STI 2015-2021

• Brake pads are NOT included with our system.
• Each caliper requires one Pad Tension Kit. If you need enough tension blocks for both of your calipers, you need to order two of these kits!