Bosch Motorsport M5 ABS Integration Kit for NA1 Honda NSX
This is a highly integrated Bosch Motorsport M5 ABS system designed to replace the factory ABS unit in the NA1 Honda NSX.
At the heart of this package is the Bosch Motorsport M5 ABS, a professional-level motorsport unit used in racing worldwide. The M5 system provides ultra-fast processing, highly accurate wheel slip control, and configurable ABS strategies for track use. Multiple driver-selectable maps allow the ABS behaviour to be tuned for tyres, surface conditions, and driving style.
Our Bosch Motorsport M5 ABS Integration kit transforms your NSX’s braking system from an outdated 1990s factory unit into a fully adjustable, motorsport-grade ABS system, that keeps the OEM fit, aesthetic, and dash integration intact, making it perfect for drivers who want motorsport level performance without sacrificing the OEM experience.
What’s Included
- Bosch Motorsport M5 ABS control unit
- Full car-specific integration harnesses
- Wheel speed sensor adapters and seals
- Mounting hardware
- Interior ABS map switch with OEM-style mounting adapter
- Factory dash lamp wiring provision
Key Benefits
- Uses all original Honda NSX body holes and mounting points, no permanent modifications required
- Includes plug-and-play wiring connections and piggyback harnesses for ECU and wheel speed sensors
- Front wheel speed sensor interfaces are adapted and fully sealed from weather exposure
- The ABS map selector is neatly mounted in the cigarette lighter socket area using a keyed adapter that locks into the OEM housing
- No interior cutting required, and the ashtray lid still closes
- Wiring provision is included to drive the factory ABS warning lamp, keeping the dash OEM-correct
- Motorsport-grade braking performance
- Proven Bosch Motorsport reliability
Technical Specifications: Bosch Motorsport M5 ABS
-
Control Strategy: High-speed multi-channel wheel slip control
-
Maps: Eleven selectable calibrations on a 12-position map switch
-
Inputs: 4x wheel speed sensors
-
Outputs: Hydraulic modulation via Bosch Motorsport valve block
Bosch Motorsport M5 vs Factory ABS
|
Factory NA1 NSX ABS |
Bosch Motorsport M5 ABS Kit |
| Technology |
Early 1990s ABS module |
Modern, high-speed multi-channel motorsport ABS |
| Processing Speed |
Limited, slower ECU response |
Ultra-fast ECU with real-time wheel slip control |
| ABS Maps |
Single, fixed map |
Eleven selectable calibrations for different tyres and conditions |
| Wheel Speed Sensor Compatibility |
OEM sensors only, front sensors prone to weather issues |
Uses factory sensors with sealed front interfaces for durability |
| Driver Control |
None |
ABS map switch neatly mounted in OEM cigarette lighter location |
| Installation |
Factory fit |
Plug-and-play, uses OEM mounting points, no cutting or permanent modifications. Lines will need to be made. |
| Dash Integration |
OEM ABS lamp |
Drives factory ABS warning lamp for seamless dash integration |
| Performance |
Adequate for road use; limited under hard braking/track |
Motorsport-level braking performance for the track. |
| Reliability / Durability |
Original design; age-dependent |
Proven Bosch Motorsport components designed for high-stress use |
| Adjustability |
None |
Adjustable for tyres, surface conditions, and driver preference |
FAQs
Q: Is the Bosch Motorsport M5 ABS included in this kit, or is it separate?
A: The kit includes the Bosch Motorsport M5 ABS unit, fully integrated with all wiring, mounts, and sensor adapters, giving you a complete plug-and-play solution.
Q: Will installation require cutting or permanent modifications to my NSX?
A: No. The integration kit uses all factory mounting points, plug-and-play harnesses, and sealed sensor interfaces. The ABS map switch fits neatly in the cigarette lighter area without cutting, and the ashtray lid still closes.
Q: Do I need special tools or skills to install the kit?
A: Some expertise is required and you will need to have some brake lines made to suit. The kit is designed for minimal disruption to the car, and detailed instructions are provided. Professional installation is recommended but not required. We cover the whole job, brackets to commissioning, in what a Bosch Motorsport ABS M5 install actually involves.
Q: Will this affect the factory ABS warning light?
A: No. The kit has full wiring provision to drive the OEM ABS warning lamp, ensuring the dash remains OEM-correct.
Q: How does the Bosch Motorsport M5 compare to the factory ABS?
A: The M5 ABS provides ultra-fast processing, selectable ABS maps, and motorsport-grade braking performance, significantly outperforming the 1990s factory system, particularly under hard braking during track use and in variable conditions.
Q: Is the system validated for road use?
A: No, Bosch Motorsport ABS is for track usage only.
Q: Can I adjust the ABS behaviour?
A: Absolutely. The kit includes a driver-selectable map switch with eleven selectable calibrations, allowing ABS response to be tuned for dry, wet or low-grip conditions.
Q: Will this kit suit a LHD car?
A: Whilst we have made allowances in the engineering and design process with respect to LHD we have not had access to a LHD vehicle to perform testing however for the right pilot customer we would be willing to work with someone to do some testing. If you are interested please contact us through our contact on the website.
Q: What's the difference between the Clubsport, Kit 1 and Kit 2 core options?
A: Every option includes the same M5 system and the same 909 platform hardware. The Clubsport core uses Bosch's universal harness, the right choice for most club and time-attack builds. Kit 1 moves to a vehicle-specific loom and supports the M5's advanced control functions for cars with real aero or braking beyond about −2 g, and Kit 2 adds Autosport-specification connectors at the wheel-speed sensor leads for endurance-style service schedules. Our kit comparison guide covers the choice in detail.
