HKS OB-Link - 2013+ FR-S / BRZ / 86

OB-Link Wireless OBD2 Monitoring System for the 2013+ FR-S, BRZ, and 86

The HKS OB-Link is a wireless OBD2 monitoring interface for the 2013+ Scion FR-S, Subaru BRZ, and Toyota 86 that connects to the vehicle's diagnostic port and transmits real-time sensor data to a smartphone app. Monitored parameters include coolant temperature, intake air temperature, throttle position, engine load, and other OBD2 PID values available from the FA20's ECU. For builds with performance modifications where monitoring these values during driving is useful, the OB-Link provides a clean, wire-free solution.

Specs & Highlights

• Wireless OBD2 data monitoring
• Connects to factory OBD2 port
• Transmits data to smartphone app
• Monitors coolant temp, IAT, throttle position, engine load, and other PIDs
• No additional wiring required
• Fitment: 2013+ Scion FR-S / Subaru BRZ / Toyota 86

BLE 4.0, 8-Channel Display, 0.1s Logging Interval

The OB-Link connects via Bluetooth 4.0 (BLE) to iOS and Android devices. The HKS OB-Link app displays up to 8 simultaneous gauge channels from the available OBD2 PIDs, with configurable warning thresholds that trigger color changes or audible alerts. Logging interval is adjustable from 0.1 to 1.0 seconds. The unit draws power directly from the OBD2 port (pin 16, battery voltage) and powers off automatically when the vehicle is locked. Size is 62mm × 35mm × 22mm, it sits flush in the OBD2 port without blocking adjacent trim panels on the FA20 and FA24 dashboards.

Real-Time Data Monitoring on Modified Cars

Real-time data monitoring matters more on modified cars than on stock ones. If you are running the HKS GT2 supercharger, a turbo kit, or any modification that changes boost pressure or engine load, knowing your coolant temperature and intake air temperature during driving is useful information. The OB-Link makes that data accessible on a device you already have.

62mm Unit, Powers from OBD2 Port Automatically

The OB-Link uses Bluetooth or WiFi (depending on version) to connect to an iOS or Android device. The HKS app displays the monitored data in configurable gauge layouts. Installation is a simple plug-in to the OBD2 port: no tools, no wiring, no modification.

The FT Breakdown

The OB-Link is the minimal-commitment data monitoring solution for FT86 builds. It does not replace a proper data logger for serious track analysis but it gives you the critical monitoring parameters you need to know your engine is operating within acceptable ranges during spirited driving. For any modified FA20, knowing your coolant and intake temps while driving is worth the small investment. The automatic power-off on vehicle lock is a detail that prevents battery drain and extends the unit's service life — a small thing that many OBD2 monitors miss. On a car like the FA20 FT86 where electrical accessories often stay plugged in between drives, that automatic cutoff keeps the OB-Link from becoming an inconvenience.