Overview Precision-machined split collar for installing Haltech's driveshaft speed sensor on 2.125" diameter driveshafts. Features eight integrated magnets for accurate speed signal generation, essential for proper traction control, launch control, and gear-based boost strategies on your Haltech-controlled build. Technical Specifications Part Number: HT-011702 Inner Diameter: 2.125" (53.98mm) Outer Diameter: 3.385" (86mm) Width: 0.375" (9.54mm) Magnet Count: 8 magnets Construction: Split collar design for installation without driveshaft removal Why You Need This Driveshaft speed sensing is critical for advanced Haltech features that separate amateur from professional builds. Without accurate driveshaft speed data, your Elite ECU can't deliver proper traction control intervention, consistent launch control engagement, or gear-dependent boost mapping. This becomes especially crucial on high-power turbo builds where wheelspin management means the difference between a fast lap time and expensive drivetrain damage. The split collar design is the professional solution for retrofitting speed sensing to existing driveshafts. Common on LS swap projects, RB-powered drift cars, and turbo conversions where the original speed sensing has been eliminated. The eight-magnet configuration provides sufficient resolution for Haltech's algorithms while maintaining reliability at high RPM. Many tuners attempt makeshift solutions with universal magnetic rings, but these often slip, create vibration, or fail under load — this Haltech collar eliminates those issues with proper engineering and materials. ECU & System Compatibility Compatible with all Haltech Elite ECUs (550, 750, 1000, 1500, 2000, 2500) and Nexus range (R3, R5) when used with appropriate Haltech speed sensors. Essential for builds utilising traction control, launch control, or advanced boost strategies. Contact our team to confirm sensor pairing and wiring requirements for your specific application. What's in the Box Haltech driveshaft split collar with 8 integrated magnets Hardware for secure installation Installation instructions Complete Your Build Most customers fitting this collar also require the corresponding Haltech speed sensor and appropriate wiring. Our technical team can recommend the complete speed sensing package for your application, whether that's a road-going LS swap needing basic speed input or a competition build requiring dual-sensor redundancy. With UK stock and expert pre-sales advice, we'll ensure you get the right components first time rather than ordering piecemeal from multiple suppliers.
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