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- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Tuthill Billet Aluminium Brake Caliper Kit with 300mm Front Discs - Front and Rear
Upgrade the braking performance of your classic Porsche with the Tuthill Billet Aluminium 300mm Front & Rear Brake Caliper Kit, developed specifically for LWB Porsche 911 models built between 1969 and 1989. Designed using Tuthill Porsche's extensive motorsport experience, this premium brake package combines lightweight billet aluminium calipers with optimised 300mm brake discs to deliver exceptional stopping power, improved pedal feel and reduced unsprung weight.
Fits:
- Porsche 911 1969-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Please
Note
On pre 1974 cars, with steel rear arms, the later alloy arms will need to be
fitted (not 930 turbo arms) as these calipers are not suitable for use with the
turbo/930 rear arms
Kit Contents
• 2 x 6-piston billet front calipers with mounting brackets
• 2 x 4-piston billet rear calipers
• 2 x 300mm front brake discs
• 2 x 3.2 rear brake discs
• 1 x Ferodo DS3000 front brake pad set
• 1 x Ferodo DS3000 rear brake pad set
• 2 x braided front brake hoses
• 2 x braided rear brake hoses
Precision CNC-machined from billet aluminium, the calipers offer superior rigidity compared with traditional cast designs, providing more consistent braking performance and improved modulation under demanding driving conditions. The complete front and rear system has been engineered to work as a balanced package, ensuring confidence-inspiring braking for fast road driving, historic rallying, track days and competition use.
Whether you're building a lightweight restomod, an RSR-inspired Porsche or a dedicated competition car, this Tuthill brake kit delivers the braking performance and engineering quality expected from one of the world's leading Porsche specialists. Designed for fast road, track, and bespoke motorsport builds, this advanced brake package has been successfully fitted to numerous classic Porsche 911 projects over the last decade.
Designed and manufactured in the UK, each caliper is precision-machined from aerospace-grade T6 billet aluminium alloy for exceptional strength, rigidity, and weight reduction.
The stainless steel pistons are specifically optimised for compatibility with the Porsche 911 master cylinder, while the internal fluid transfer design improves reliability and removes the need for external crossover pipework.
With front calipers weighing approximately 2.8kg and rear calipers around 2.2kg, this system significantly reduces unsprung weight compared to standard Porsche brake components. Combined with the larger 300mm front discs, the result is improved braking performance, sharper pedal feel, enhanced heat management, and greater confidence under demanding driving conditions.
This kit is designed to deliver modern braking capability while maintaining compatibility with classic Porsche 911 chassis and suspension configurations.
Key Features
• Billet aluminium brake caliper kit for Porsche 911
• Suitable for LWB Porsche 911 models from 1969-1989
• Lightweight 6-piston front calipers
• Lightweight 4-piston rear calipers
• Larger 300mm front brake discs included
• Precision-machined from aerospace-grade T6 aluminium
• Stainless steel pistons optimised for Porsche master cylinder compatibility
• Internal fluid transfer design for improved reliability
• Significant reduction in unsprung weight
• Designed and manufactured in the UK
• Suitable for road, fast road, and motorsport applications
Lightweight Motorsport Brake Engineering
Reducing unsprung weight improves suspension response, steering precision, and overall vehicle dynamics.
Compared to standard Porsche brake systems, these billet
aluminium calipers offer:
• Faster steering response
• Improved suspension control
• Enhanced braking modulation
• Reduced brake fade
• Greater heat dissipation during aggressive driving
The larger 300mm front discs further improve stopping performance and thermal capacity for demanding road and track use.
Why Upgrade to a Billet Brake System?
Standard brake systems can struggle under modern performance driving conditions.
This upgraded system provides:
• Increased braking power
• Improved pedal feel and consistency
• Reduced overall brake weight
• Better cooling and heat management
• Motorsport-grade durability and reliability
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
911BILLETCALIPERKIT300MM
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
SET OF 2
Porsche multiple applications
Technical specification:
Piston size (mm): 36/44
Piston area (mm3): 50.37
Weight (Kg): 3.8
Pad thickness (mm): 18
Disc Diameter (mm): 322
Disc thickness (mm): 32
Hydraulic threads: M10 X 1
Mounting hole center (mm): 130
Mounting offset (mm): 55
Mounting hole diameter (mm): Ø12.2
Caliper body: Fission
Caliper material: AI A356
Material process: Cast
Made to the same dimensions and specifications as the original Porsche 993 turbo brake calipers "Big Reds" can be used to upgrade the braking system on your Porsche 964 / 993 model with bigger brake disc, brake pads from the 993 Turbo should be used with these brake calipers
Also Fits:
Porsche 964 C2 with Brackets - BRACKETKIT02
Porsche 964 C4 with Brackets - BRACKETKIT02
Porsche 964/965 Turbo with Brackets - BRACKETKIT02
Porsche 930 Turbo with Brackets - BRACKETKIT03
Porsche 911 1974-89 with Brackets - BRACKETKIT04
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3604209301
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Kit Includes
2 x Turbo Brake Disc 332mm x 32mm
2 x Caliper Mounting Brackets
4 x Caliper Bracket Bolts
2 x Big Red Calipers
1 x Set of Brake Pads
8 x Brake Pad Shims
2 x Caliper stickers in WHITE lettering
2 x Brake cliper sensors
Fits:
Porsche 911 1984-89 3.2L
The minimum size wheels are 17" needed to make the clearance. Some cars may also need wheel spacers to clear the brake calliper offset
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BIGBRAKE911R32
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Set of 2 brackets
Porsche 911 1974-89 (with 17" wheels or bigger)
Please Note: your car must be fitted with 17" wheels or bigger for the clearance reasons
Reference code for the 299 x 24 mm C2 brake rotors: 996.352.401.04
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3604109112
The product you are viewing cross references to these numbers