RENNKIT™ Brake System Upgrades

Cal*Cool™ Brake Caliper Cooling Radiators
Girodisc 2-Piece Rotors
Brake Pads – Ferodo Racing & Performance Friction (PFC)

**RENKIT™ Cal*Cool™ CALIPER COOLING RADIATORS**
for 996 Turbo / Carrera 4S and 997.1 C2S / C4S with Larger 350 mm Rotors (not PCCB)

A popular upgrade to the 996 Carrera 4S and Turbo are larger diameter rotors. By swapping out stock 330 mm rotors to larger 350 mm rotors better braking is achieved, like the 997 Turbo. This change provides ultimate cooling, better braking action and feel. Everything you need to move the caliper further out to accommodate the 350 mm rotor swap.

FRONT Cal*Cool™ KIT $139.99

REAR Cal*Cool™ KIT $149.99

SAVE $ with BOTH FRONT & REAR Cal*Cool™ KIT $289.99

**Cal*Cooler™ Kit + Girodiscs – ALL 4 CORNERS**

BEST VALUE – Set of 4 Girodisc 350mm 2-Piece Rotors PLUS Cal*Cooler Kit for all 4 Corners – Save over purchasing separately!

ULTIMATE upgrade, use existing pads (or upgrade to more aggressive track pads).

**SAVE $ – Girodisc + Cal*Cool™ ALL 4 CORNERS
$2999**

A known problem is brake calipers over-heat and cook the brake fluid during high speed track use:

NOTE: You may have to slightly modify the cooling plates depending upon your aftermarket equiment (e.g. coil overs) or model (e.g. 997 C4S).

Rennkit™ has the solution: Cal*Cool™ brake caliper coolers. A quick modification that allows excess heat to dissipate much faster. Conductive and convective heat transfer quickly dissipates brake caliper heat while driving. When parked, conductive and radiative heat transfer continue to effectively remove heat from hot calipers.

Track Test #1 – Autobahn Country Club, Joliet, IL – 996 Turbo with Stage 1 tune, NASA HPDE advanced group; all 4 corners remained below 370F:

Track Test #2, The monster, Road America in Wisconsin – 996 Turbo with Stage 1 tune, PCA HPDE advanced run group. Two days on track. Added lower temperature Thermolabels to all 4 corners. NEVER EXCEEDED 330F!

NEVER EVEN REACHED 330F!

From our customer Billy Browne: “My 02tt is proof positive of your track statement. I added your Cal*Coolers… & she braked relentlessly without any surrender!”

Save your brakes! Cal*Cool™ brake coolers are easily inserted between caliper and wheel hub carrier using provided bolts. Far more stability, conduction and surface area than simple collars that others sell. Reduced brake vibration, fade and fatigue. All hardware is included, along with easy to follow step by step illustrated instructions backed by the customer service that Rennkit™ is known for. Come with 2 year limited warranty.
(NOT FOR CARS WITH STOCK 330 mm ROTORS or PCCB Ceramic brakes)

Kit contents:

Cal*Cool™ Brake Caliper Coolers for 350 mm Brake rotors
Hex Socket Bolts
High Temp Heat Transfer Paste
Detailed Illustrated Step by Step Instructions (emailed with order):

Leading rotor upgrade for 996 / 997 / 991 Series Porsches®

Model	Price
996.2, 997.1 GT3 – FRONT	$ 1,300

996.1 GT3, incl. spacers & bolts – FRONT	$ 1,300

986, 987, 996, 997.1 – FRONT	$ 1,200

996, 997, incl. spacers & bolts – FRONT	$ 1,300

981, incl. spacers & bolts – FRONT	$ 1,200

380mm – FRONT	$ 1,700

993 RS, Turbo – FRONT	$ 1,200

991.1 S, 4S, GTS – FRONT	$ 1,300

997 GT3 Cup 380x34mm – FRONT	$ 1,700

997 GT3, 380mm – FRONT	$ 1,700

991 GT3 – FRONT	$ 1,700

996 GT3 Cup – FRONT	$ 1,300

Carrera, 981, 718, incl. spacers & bolts – FRONT	$ 1,300

991 GT3, GT2RS PCCBIron Rotor Conversion – FRONT	$ 1,900

GT4, 991, 992 PCCBIron Rotor Conversion – FRONT	$ 1,900

991 GT3 Cup (380×34) – FRONT	$ 1,700

GT4 Clubsport (380×34) – FRONT	$ 1,700

718 S, 991.2, 992 Carrera, incl. spacers & bolts – FRONT	$ 1,300

991 GT3 Cup (380×32) – FRONT	$ 1,700

GT2 RS Clubsport – FRONT	$ 1,900

GT4 Clubsport (380×32) – FRONT	$ 1,700

992 GT3 – FRONT	$ 1,900

992 GT3 PCCBIron Rotor Conversion – FRONT	$ 1,900

986, 987 – REAR	$ 1,200

350mm – REAR	$ 1,300

996, 997, incl. spacers & bolts – REAR	$ 1,300

996, 991, 992, incl. spacers & bolts – REAR	$ 1,300

996, 997.1 Carrera, incl. spacers & bolts – REAR	$ 1,200

981, 718 incl. spacers & bolts – REAR	$ 1,200

Cayman Iron Conversion, 981 Spyder – REAR	$ 1,300

718 GTS 4.0, incl. spacers & bolts – REAR	$ 1,300

993 RS, Turbo – REAR	$ 1,200

997 GT3 Cup – REAR	$ 1,300

996 GT3 Cup, incl. spacers & bolts – REAR	$ 1,300

991 GT3 – REAR	$ 1,700

991 GT3, GT2RS PCCBIron Rotor Conversion – REAR	$ 1,900

981 GT4, 991 Turbo – REAR	$ 1,700

GT4, 991, 992 PCCBIron Rotor Conversion – REAR	$ 1,900

GT4 Clubsport (380×32) – REAR	$ 1,700

991 GT3 Cup (380×30) – REAR	$ 1,700

GT2 RS Clubsport – REAR	$ 1,900

GT4 Clubsport (380×30) – REAR	$ 1,700

992 GT3 – REAR	$ 1,700

992 GT3 PCCB Iron Rotor Conversion – REAR	$ 1,900

Why upgrade to Girodisc rotors on your high-performance Porsche 911?

Replaces current heavy 1-piece iron rotors with the lighter weight Girodisc 2-piece unit (Aluminum/Iron)
Reduces unsprung weight at each corner – more responsive suspension
For 996 Turbo and C4S; easily upgrade to larger diameter 350 mm rotors for better stopping force
Replace expensive PCCB ceramic rotors with less costly 2-piece aluminum/iron rotors, especially on the track.

The central hat is 6061-T6 aluminum. The disc is a proprietary cast iron and machined start to finish by Girodisc. Rotors utilizes a curved vane design, developed in racing to act as a centrifugal fan, forcing cooling air through the disc.

Drilled holes are not used as they tend to crack under heavy use such as at the track. The rotor and hat have a floating mount system, utilizing 8 or 10 high strength alloy steel drive pins, manufactured to Girodisc specifications, with cadmium plating for long lasting corrosion protection. The pins take the load from braking actions while maintaining axial and radial float between hat and disc. The pins are secured with grade 12 cap screws and hardened washers. To keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers. This allows the rotor to grow with heat expansion, but eliminates rattle and noise associated with floating rotors. This float allows the rotor to self center between the pads.

Bonus: Once the Girodisc rotors are in place, simply replace the cast iron disc once worn below suggested limits.

We have the rebuild kit as well; iron rings with all hardware and instructions to replace the iron rotors. CONTACT US for rings only pricing.

BRAKE PADS

There are four compounds to choose from, Street/Track to full on Endurance Racing. Ferodo is currently a top choice at the track.

Ferodo DS UNO Compound

Ferodo Racing has made great strides in pad development over the past few years and DS UNO is their latest offering. For those that enjoy the performance of the DS1.11 in club racing, HPDE, and time trials, but just want a more aggressive bite, the DS UNO is a great choice. They don’t wear quite as long as the DS1.11, but do offer a higher overall mu once reaching track temperatures.

Year/Model

2016	981 GT4
2013	991 GT3
2013	991 Turbo

FRONT – $629

REAR – $609

Ferodo DS3.12 Compound

The DS3.12 is the latest evolution of Ferodo’s DS line. Sports cars today have more of everything: More horsepower, more aero, higher curb weight and stickier tires. These attributes place great demands on the vehicle’s brake system. The Ferodo DS3.12 is a modern pad compound designed to explicitly handle those demands. Ferodo Racing’s DS3.12 pad compound is proving to be a tremendous asset for Porsche drivers participating in club racing, HPDE, and time trials. The DS3.12 shows the flattest torque curve across the broadest temperature range we’ve ever tested. The brake pedal is going to feel exactly the same heading into every turn of every lap, providing tremendous consistency and repeatability. The DS3.12 has a higher mu than Ferodo’s other compounds, so less pedal pressure is required to initiate the desired response. It is also unfadable, showing no drop in performance at any temperature. In dyno testing, the DS3.12 has shown superior wear rates to the other Ferodo compounds, while minimizing excessive disc wear. The DS3.12 pads are becoming the gold standard in comparison to other race pad compounds.

Year/	Model
2016	981 GT4
2013	991 GT3
2013	991 Turbo

FRONT – $549

REAR – $539

Year/	Model
2008	997 Carrera 3.6, 3.4

FRONT – $479

REAR – $379

Year/	Model
2012	981 Boxster S/Cayman S
2017	718 Cayman S/GTS/Cayman (Base)

FRONT – $479

REAR – $379

Year/	Model
2012	991.1 and 991.2 Carrera S/GTS

FRONT – $619

REAR – $559

Year/	Model
1999-2004	996 Turbo
2005-2008	997 Carrera S
2006	996 Carrera S
2009	997 Carrera S/GTS

FRONT – $399

REAR – $379

Year/	Model
1999-2004	996 C2/C4
2005-2008	997 Carrera/C2/C4
2005-2012	987 Cayman S
2005-2012	987 Boxster S

FRONT – $379

REAR – $379

Year/	Model
2002-2005	996 GT3

FRONT – $689

REAR – $379

Year/	Model
2005-2008	997.1 – 997.2 GT3/RS & Turbo
2009-2012	997.2 GT3/RS & Turbo

FRONT – $689

REAR – $379

Year/	Model
2014+	Cup Car

FRONT – $579

REAR – $519

Ferodo DS1.11 Compound

The DS1.11 is one of Ferodo Racing’s latest endurance race pad offerings. The DS1.11 is known for its extremely flat torque curve, which means that as temperatures go up, the response through the brake pedal remains consistent. The DS1.11 can be thrashed all day without having it burn up or fade, it’s easy on discs, and doesn’t have many of the judder or vibration issues that competing products exhibit. If you want an extremely solid, all-around race pad that will perform well and last longer, the DS1.11 is the perfect choice.

Year/	Model
2016	981 GT4
2013	991 GT3
2013	991 Turbo

FRONT – $549

REAR – $539

Year/	Model
2017	718 Cayman S/GTS, Cayman (Base)
2012	981 Boxster S/Cayman S

FRONT – $449

REAR – $379

Year/	Model
2008	997 Carrera 3.6, 3.4

FRONT – $449

REAR – $379

Year/	Model
2012	991.1 and 991.2 Carrera S/GTS

FRONT – $579

REAR – $599

Year/	Model
2009	997 Carrera S, GTS
2006	996 Carrera S
2005-2008	997 Carrera S
1999-2004	996 Turbo / C4S

FRONT – $399

REAR – $379

Year/	Model
2005-2008	997 Carrera, C2, C4
2005-2012	987 Cayman S
2005-2012	987 Boxster S
1999-2004	996 C2/C4

FRONT – $379

REAR – $379

Year/	Model
2002-2005	996 GT3
2005-2008	997.1 997.2 GT3, RS & Turbo
2009-2012	997.2 GT3, RS & Turbo

FRONT – $679

REAR – $379

Ferodo DS2500 Compound

Although we always recommend using a dedicated race pad for the track, the DS2500 is one of the best hybrid street/track pads on the market. It features a moderately high bite and solid fade resistance of a track pad, with relatively low dust and noise levels of a traditional street pad. When used as a street pad, it may produce some squeal on certain vehicle platforms under certain conditions (cold rotors). During aggressive driving, the DS2500 is known for its flat torque curve, which means as temperatures go up, the response through the brake pedal remains consistent. If you drive aggressively on the street, do some canyon runs, autoX, or occasional HPDE track time, the DS2500 is a solid choice.

When used on higher HP, heavier cars (2,800 lbs+) at the track with race tires, pad wear rates tend to be higher than with Ferodo’s other pad compounds. Under these conditions, the Ferodo DS1.11 or DS UNO are better choices.

Year/	Model
2002-2005	996 GT3

FRONT – $469

REAR – $249

Year/	Model
2005-2008	997.1 997.2 GT3, RS & Turbo
2009-2012	997.2 GT3, RS & Turbo

FRONT – $469

REAR – $269

Year/	Model
1999-2004	996 C2/C4
2005-2012	987 Boxster S
2005-2012	987 Cayman S

FRONT – $249

REAR – $249

Year/	Model
1999-2005	996 Turbo
2005-2009	997 Carrera S
2005	996 Carrera S
2009	997 GTS

FRONT – $259

REAR – $249

Year/	Model
2012	991.1 and 991.2 Carrera S/GTS

FRONT – $499

REAR – $419

Year/	Model
2008	997 Carrera 3.6, 3.4

FRONT – $319

REAR – $269

Year/	Model
2012	981 Boxster S/Cayman S
2017	718 Cayman S/GTS/Cayman (Base)

FRONT – $319

REAR – $249

Year/	Model
2013 –	991 GT3
2013 –	991 Turbo
2016	981 GT4

FRONT – $439

REAR – $439

Year/	Model
2005-2008	997 Carrera, C2, C4

FRONT – $249

REAR – $249

These highly recommended pads come in two compounds. PFC is involved with numerous Sports Car events across the globe, including:
– IMSA
– Continental Tire Sportscar Challenge
– Porsche Cup Racing
– Pirelli World Challenge
…and many more.

08 Brake Pad Compound

Less aggressive bite and fade resistance than the 11 compound pad with better wear for track use. Best when rotors are warmed up. Many enthusiasts use this pad for the larger fronts and the 11 compound pad on the rears to slightly increase braking bias toward the rear’s smaller pads – particularly on the water cooled Turbos.

Year/	Model
1996-2005	986 Boxster
2005	987 Boxster
2005-2008	Cayman

FRONT – $269

REAR – $269

Year/	Model
1999 – 2004	996, C2, C4
1999-2005	986, Boxster S
2005	987, Boxster S
2005	997 Carrera
2005 – 2008	997 Carrera
2009-2012	Cayman
2005-2012	Cayman S

FRONT – $279

REAR – $269

Year/	Model
2006 -2012	997 GT3 RS w factory Steel rotors

FRONT – $399

REAR – $439

Year/	Model
2012	981 Boxster S
2013	981 Cayman S

FRONT – $359

REAR – $269

Year/	Model
2008	997 Carrera

FRONT – $359

REAR – $439

Year/	Model
1999 – 2001	911 (996) GT3 Cup Car All Models
2001 – 2005	911 (996) Turbo All 4S
2002-2004	996 C4S
2005 – 2008	997 Carrera S
2009	997 Carrera S, GTS

FRONT – $289

REAR – $279

Year/	Model
2002 – 2005	911 (996) GT3 Cup Car All Models

FRONT – $429

REAR – $279

Year/	Model
2004-2006	Carrera GT
2006-	997 Turbo

FRONT – $429

REAR – $439

Year/	Model
2005 – 2008	997 Cup
2006-2012	997 GT3 RS w PFC slotted Rotors

FRONT – $429

Year/	Model
2002 – 2005	996 GT2

REAR – $279

11 Brake Pad Compound

More aggressive initial/hot bite and fade resistance than the 08 pad for track use. Best when rotors are warmed up. Many enthusiasts use this pad on the rear brakes to bump-up bias toward the rear’s smaller pads.

Year/	Model
1996-2005	986 Boxster
2005	987 Boxster
2005-2008	Cayman

FRONT – $269

REAR – $269

Year/	Model
1999 – 2001	996 GT3 Cup Car All Models
2001 – 2005	996 Turbo All / 4S
2005 – 2008	997 Carrera S
2009 –	997 Carrera S / GTS

FRONT – $289

REAR – $279

Year/	Model
2002 – 2005	996 GT3 Cup Car All Models

FRONT – $489

REAR – $279

Year/	Model
2004-2006	Carrera GT
2007-2011	997 Turbo
2005 – 2008	997 Cup
2006-2012	997 GT3 RS w/ PFC slotted Rotors

FRONT – $489

REAR – $439

Year/	Model
1996-2005	986 Boxster
2005	987 Boxster
2005-2008	Cayman
2012	981 Boxster S
2013	981 Cayman S

REAR – $269

Year/	Model
2006 -2012	997 GT3 RS w factory Steel rotors
2008	997 Carrera

REAR – $439

Year/	Model
2002 – 2005	996 GT2

REAR – $279

Year/	Model
2013	991 GT3 / Turbo
2016	981 GT4

FRONT – $449

REAR – $399

This site is in no way associated with Porsche Cars North America, Inc.
Porsche is a registered trademark of Dr. Ing. h.c. F. Porsche AG.

RENNKIT™ Brake System Upgrades

Cal*Cool™ Brake Caliper Cooling Radiators

Girodisc 2-Piece Rotors

Brake Pads – Ferodo Racing & Performance Friction (PFC)

RENKIT™ Cal*Cool™ CALIPER COOLING RADIATORS for 996 Turbo / Carrera 4S and 997.1 C2S / C4S with Larger 350 mm Rotors (not PCCB)

Cal*Cooler™ Kit + Girodiscs – ALL 4 CORNERS

BEST VALUE – Set of 4 Girodisc 350mm 2-Piece Rotors PLUS Cal*Cooler Kit for all 4 Corners – Save over purchasing separately!

ULTIMATE upgrade, use existing pads (or upgrade to more aggressive track pads).

A known problem is brake calipers over-heat and cook the brake fluid during high speed track use:

NEVER EVEN REACHED 330F!

<img loading="lazy" decoding="async" class="" src="https://cdn11.bigcommerce.com/s-a06wg97csf/images/stencil/original/girodisc_logo_big-commerce_1653421324__86147.original.png" alt="Girodisc" width="218" height="52" /> 2-PIECE ROTORS

Leading rotor upgrade for 996 / 997 / 991 Series Porsches®

Model

Price

We have the rebuild kit as well; iron rings with all hardware and instructions to replace the iron rotors. CONTACT US for rings only pricing.

BRAKE PADS

Ferodo DS UNO Compound

Year/Model

2016

981 GT4

2013

991 GT3

2013

991 Turbo

Ferodo DS3.12 Compound

Year/

Model

2016

981 GT4

2013

991 GT3

2013

991 Turbo

Year/

Model

2008

997 Carrera 3.6, 3.4

Year/

Model

2012

981 Boxster S/Cayman S

2017

718 Cayman S/GTS/Cayman (Base)

Year/

Model

2012

991.1 and 991.2 Carrera S/GTS

Year/

Model

1999-2004

996 Turbo

2005-2008

997 Carrera S

2006

996 Carrera S

2009

997 Carrera S/GTS

Year/

Model

1999-2004

996 C2/C4

2005-2008

997 Carrera/C2/C4

2005-2012

987 Cayman S

2005-2012

987 Boxster S

Year/

Model

2002-2005

996 GT3

Year/

Model

2005-2008

997.1 – 997.2 GT3/RS & Turbo

2009-2012

997.2 GT3/RS & Turbo

Year/

Model

2014+

**Cal*Cool™ Brake Caliper Cooling Radiators**

**RENKIT™ Cal*Cool™ CALIPER COOLING RADIATORS**
for 996 Turbo / Carrera 4S and 997.1 C2S / C4S with Larger 350 mm Rotors (not PCCB)

**Cal*Cooler™ Kit + Girodiscs – ALL 4 CORNERS**

2-PIECE ROTORS