Complete front Essex Designed AP Racing Radi-CAL Competition Brake Kit fits all 997.1 and 997.2 except for GT3 and 997.1 base. Also fits 991.1 and 991.2 Carrera S/4S/GTS/Targa 4 GTS/ T, 981 Boxster and Cayman, and 718 Boxster and Cayman.

• Features AP Racing CP9661 Radi-CAL six piston calipers
• No unsprung weight penalty vs. OEM despite the additional pistons (6 vs. 4) and much larger disc
• Huge array of brake pad options from all major pad manufacturers
• 372x34mm, 84 vane AP Racing disc
• 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 or our Essex/AP Racing rear brake kits 

Advantages Over OEM Brake System

Our CP9661/372mm Radi-CAL Competition Brake Kit offers our customers the following advantages over the OEM brake system:

• Eliminates the need to remove caliper for front pad change
• No unsprung weight penalty vs. OEM despite the additional pistons and much larger disc
• AP Racing Radi-CAL calipers are the stiffest, lightest, and most technologically advanced calipers available at any price
• CP9661 calipers use a 18mm 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 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 ($359 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

Complete front Essex Designed AP Racing Radi-CAL Competition Brake Kit fits all variants of the Porsche 981 (2013-2016) Boxster and Cayman, except for the GT4. Also fits 718 Boxster S & Cayman S.

• Features AP Racing CP9661 Radi-CAL six piston calipers
• Eliminates need to remove caliper for pad change
• Huge array of brake pad options from all major pad manufacturers
• 355x32mm, 72 vane AP Racing disc
• Saves 2 to 10 unsprung lbs. from nose vs. OEM S brakes depending on application
• 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 or our Essex/AP Racing rear BBK

Advantages Over OEM Brake System

Our CP9661/355mm Radi-CAL Competition Brake Kit offers our customers the following advantages over the OEM brake system:

• Eliminates the need to remove caliper for front pad change
• Removes 2lbs. of unsprung weight compared to the OEM 981 Cayman S system, and 10 lbs. from the 718 OEM S system.
• AP Racing Radi-CAL calipers are the stiffest, lightest, and most technologically advanced calipers available at any price
• CP9661 calipers use a 18mm 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 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 ($359 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

Essex Designed AP Racing 2-piece Competition J Hook rear disc pair for 991.1 & 991.2 GT3 & GT3 RS with iron discs

• 14.96" x1.18" (380mm x 30mm) 72 Vane, D67
• Huge increase in airflow, cooling capacity, and durability vs. OEM discs
• Saves 3-4 lbs. unsprung weight per side
• Retains full parking brake functionality
• Designed for: Club racing, time trial, autoX, HPDE
• Works with OEM calipers, no modifications required
• Ultralight, fully floating, anodized billet aluminum hat with float control/anti-rattle clips

Advantages Over OEM Brake System

Our Essex Designed J Hook Competition Brake Discs offers our customers the following advantages over the OEM rear 991 GT3 discs:

• Championship winning, 72 vane, fully-floating, AP Racing J Hook design
• Huge increase in airflow, cooling capacity, and durability vs. OEM discs
• Saves 3-4 lbs. unsprung weight per side
• Eliminates OEM drilled discs, which are prone to cracking around the drilled holes
• Disc metallurgy specifically designed to handle the temps typically seen on track offer a long service life
• Replacement iron disc rings available at an extremely competitive replacement price ($399 each)
• Anti-knockback/anti-rattle disc attachment hardware
• Available disc burnishing service ensures that your kit arrives ready to be installed and driven hard immediately

Essex Designed AP Racing 2-piece Competition J Hook front disc pair for 991.1 & 991.2 GT3 & GT3 RS with iron discs

• 14.96" x1.34" (380mm x 34mm) 72 Vane, D66
• Huge increase in airflow, cooling capacity, and durability vs. OEM discs
• Saves 2 lbs. unsprung weight per side vs. OEM iron discs
• Designed for: Club racing, time trial, autoX, HPDE
• Works with OEM calipers, no modifications required
• Ultralight, fully floating, anodized billet aluminum hat with float control/anti-rattle clips

Advantages Over OEM Brake System

Our Essex Designed J Hook Competition Brake Discs offers our customers the following advantages over the OEM front 991 GT3 discs:

• Championship winning, 72 vane, fully-floating, AP Racing J Hook design
• Huge increase in airflow, cooling capacity, and durability vs. OEM discs
• Saves 2 lbs. unsprung weight per side vs. OEM iron discs
• Eliminates OEM drilled discs, which are prone to cracking around the drilled holes
• Disc metallurgy specifically designed to handle the temps typically seen on track offer a long service life
• Replacement iron disc rings available at an extremely competitive replacement price ($399 each)
• Anti-knockback/anti-rattle disc attachment hardware
• Available disc burnishing service ensures that your kit arrives ready to be installed and driven hard immediately 

Essex Designed AP Racing 2-piece Competition J Hook rear iron disc pair for 991.1 & 991.2 GT3 & GT3 RS to replace PCCB discs.

• 15.35" x1.26" (390mm x 32m)
• Huge increase in airflow, cooling capacity, and durability vs. OEM PCCB discs
• Drastically less expense long-term running costs vs. PCCB
• Must use the standard rear 991 GT3/RS pad shape used in OEM iron system (not compatible with OE PCCB Pad shape)
• Allows normal function of OEM parking brake
• Over twice as many internal cooling vanes as the OEM PCCB's
• Weighs identical to OEM 380x34mm iron discs, despite larger size
• Designed for: Club racing, time trial, autoX, HPDE
• Works with OEM calipers and wheels, no modifications required
• Ultralight, fully floating, anodized billet aluminum hat with float control/anti-rattle clips

Advantages Over OEM Brake Discs

Our Essex Designed J Hook Competition Brake Discs offers our customers the following advantages over the OEM rear 991 GT3 and GT RS PCCB discs:

• Championship winning, 72 vane, fully-floating, AP Racing J Hook design
• Huge increase in airflow, cooling capacity, and durability vs. OEM discs
• Compatible with the standard rear 991 GT3/RS pad shape used in OEM iron system
• Over twice as many internal cooling vanes as the OEM PCCB's
• Disc metallurgy specifically designed to handle the temps typically seen on track offer a long service life
• Replacement iron disc rings available at a drastically lower price vs. PCCB
• Anti-knockback/anti-rattle disc attachment hardware 
• Available disc burnishing service ensures that your kit arrives ready to be installed and driven hard immediately

Essex Designed AP Racing 2-piece Competition J Hook front iron disc pair for 991.1 & 991.2 GT3 & GT3 RS to replace PCCB discs.

• 16.14" x1.40" (410mm x 36mm)
• Huge increase in airflow, cooling capacity, and durability vs. OEM PCCB discs
• Drastically less expense long-term running costs vs. PCCB
• Must use the standard front 991 GT3/RS pad shape used in OEM iron system (not compatible with OE PCCB pad shape)
• Over twice as many internal cooling vanes as the OEM PCCB's
• Weighs almost the same as the OEM 380x34mm iron discs, despite much larger size
• Designed for: Club racing, time trial, autoX, HPDE
• Works with OEM calipers and wheels, no modifications required
• Ultralight, fully floating, anodized billet aluminum hat with float control/anti-rattle clips

Advantages Over OEM PCCB Brake Discs

Our Essex Designed J Hook Competition Brake Discs offers our customers the following advantages over the OEM front 991 GT3 and GT RS PCCB discs.

• Huge increase in airflow, cooling capacity, and durability vs. OEM PCCB discs
• Compatible with standard front 991 GT3/RS pad shape used in OEM iron system
• Championship winning, 84 vane, fully-floating, AP Racing J Hook design
• Huge increase in airflow, cooling capacity, and durability vs. OEM discs
• Over twice as many internal cooling vanes as the OEM PCCB's
• Disc metallurgy specifically designed to handle the temps typically seen on track offer a long service life
• Replacement iron disc rings available at a drastically lower price vs. PCCB
• Anti-knockback/anti-rattle disc attachment hardware
• Available disc burnishing service ensures that your kit arrives ready to be installed and driven hard immediately

Complete front Essex Designed AP Racing Competition Brake Kit for Subaru BRZ / Scion FR-S / Toyota GT86

• Features AP Racing CP8350 four piston calipers
• 299x32mm, 70 vane AP Racing disc
• Saves 10 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

What’s in the Box

Advantages Over OEM Brake System

Our CP8350 Competition Brake Kit offers our customers the following advantages over the OEM FT86 brake system:

• Approximately 10 lbs. of unsprung weight reduction from the car
• AP Racing calipers are the stiffest, lightest, and most technologically advanced calipers available at any price
• CP8350 calipers use a 20mm thick, commonly available brake pad shape
• 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, 70 vane, fully floating, AP Racing J Hook racing discs with 10 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

Complete front Essex Designed AP Racing Competition Brake Kit for Subaru BRZ / Scion FR-S / Toyota GT86

• Features AP Racing CP8350 four piston calipers
• 299x32mm, 60 vane AP Racing disc
• Saves unsprung lbs. from nose of 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

What’s in the Box

• One pair AP Racing CP8350 racing calipers
• One pair 299x32mm AP Racing CP3862, 60 vane, J Hook racing discs, with 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. 

Advantages Over OEM Brake System

Our CP8350 Competition Brake Kit offers our customers the following advantages over the OEM FT86 brake system:

• Approximately 20 lbs. of unsprung weight reduction from nose of car
• AP Racing calipers are the stiffest, lightest, and most technologically advanced calipers available at any price
• CP8350 calipers use a 20mm thick, commonly available brake pad shape
• 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, AP Racing J Hook racing discs
• 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

Complete front AP Racing by Essex Radi-CAL Road Brake Kit for the Tesla Model 3:

• Huge 380x36mm, 72 vane AP Racing J Hook, fully-floating 2-piece discs dwarf the 350x25mm OEM units and fill up the wheels
• Allows for pad changes without having to remove the caliper (OEM caliper must be removed for pad change)
• Leverages six piston AP Racing CP9561 World Radi-CAL II calipers with a red, black, or silver painted finish
• Fit behind OEM 20" wheel without a wheel spacer
• Low noise, vibration, and harshness for a very OE-like experience during daily driving
• Utilizes large volume brake pads for heat absorption and longevity
• Calipers have dust boots that add durability in inclement weather conditions
• Pistons sized properly to maintain brake bias and work with the OEM master cylinder and ABS system
• Designed to mate with OEM rear brakes
• Includes Ferodo DS2500 brake pads

WHAT'S IN THE BOX?

• One pair AP Racing CP9561 World Radi-CAL II six piston calipers
• One pair 380x36mm AP Racing CP7177, 72 vane, J Hook 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
• One set of Ferodo DS2500 Brake Pads
• Detailed installation instructions

CALIPERS

RADI-CAL

“Radi-CAL” is a blanket term used to describe AP Racing’s patented asymmetrical brake caliper design. Radi-Cal technology is grounded in Computer Aided Design (CAD) and Finite Element Analysis (FEA), and allows for organic, alien-looking designs that are a radical departure from conventional caliper designs of the past. Radi-CAL's are widely considered the pinnacle of current brake caliper technology. Since their inception in 2007, these revolutionary calipers have amassed a lengthy string of race victories at all levels of professional motorsport, while redefining brake performance expectations. For more details on the design concept and what these calipers have achieved in professional racing, please visit our blog and read The AP Racing Radi-CAL Story.

The key benefits of the Radi-CAL design:

• Massive Stiffness Increase- A 30+ % increase in both static and dynamic stiffness vs. conventional calipers allows for far less deflection under load, which means superior pedal feel & modulation, more even pad wear, and longer caliper service life.
• Considerable Mass Reduction- Removing all extraneous caliper mass lowers the caliper weight, despite the huge stiffness increases.
• Optimized Airflow- Air moves around and through the caliper more efficiently, providing superior heat evacuation and cooling.
• Efficient Packaging- The asymmetric caliper profile allows the caliper to fit into tighter spaces.

Complete front Essex Designed AP Racing Radi-CAL Competition Brake Kit for the Tesla Model 3

• Features AP Racing CP9660 or CP9668 Radi-CAL Pro5000R six piston calipers
• 372x34mm, 84 vane AP Racing disc
• Saves roughly 2 unsprung lbs. from nose vs. OEM brakes, despite being considerably larger
• 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 or our Essex/AP Racing rear BBK

WHATS IN THE BOX?

 Read More here:

https://www.essexparts.com/news-blog/new-tesla-kits-available-soon

Complete front Essex Designed AP Racing Radi-CAL Competition Brake Kit for Ford Mustang Shelby GT350/GT350R. Identical to brakes on the Shelby FP350S racecar!

• Saves 29 unsprung lbs. from nose vs. OEM brakes!
• Features AP Racing CP9660 Radi-CAL calipers or CP9668
• 372x34mm, 84 vane AP Racing disc
• CP9660 calipers use a 18mm thick, commonly available brake pad shape
• CP9668 calipers use a 25mm thick, commonly available brake pad shape
• 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 or our Essex/AP Racing rear BBK (in development)

WHAT'S IN THE BOX?

• One pair AP Racing CP9660 or CP9668 Radi-CAL Pro5000R six piston calipers
• One pair 372x34mm AP Racing CP6084, 84 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

Advantages Over OEM Brake System

Our Radi-CAL Competition Brake Kit offers our customers the following advantages over the OEM brake system:

• Approximately 29 lbs. of unsprung weight reduction from the nose of the car!
• AP Racing Radi-CAL calipers are the stiffest, lightest, and most technologically advanced calipers available at any price
• 18mm or 25mm thick pads, depending on system 
• 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, 84 vane, fully floating, AP Racing J Hook 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

Fits: Rear  Ford Mustang Shelby GT350

What’s in the Box

• One pair AP Racing CP9450 Radi-CAL Pro5000R racing calipers
• One pair 365x30mm AP Racing CP8972, 72 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.