Total Racing Products VR38 Knock Sensor Sub-Harness – R35 GTR

The OEM knock sensor sub-harness on the VR38DETT is known to suffer from heat-related wear, brittle insulation, and fraying over time—especially in high-mileage or high-performance R35s. That’s why we developed the Total Racing Products VR38 Knock Sensor Sub-Harness—a high-quality, plug-and-play solution built to withstand the harsh under-manifold environment of the R35 GTR.

Designed in response to direct feedback from trusted shops and customers, this harness is a direct replacement for the factory sub-harness and uses TXL automotive-grade wiring and OE-spec connectors to ensure long-term reliability in extreme conditions.

Features:

• Direct plug-and-play replacement for the factory VR38 knock sensor sub-harness

• Built with TXL automotive-grade wire for improved heat, chemical, and abrasion resistance

• OE-style sealed connectors for proper fitment and weather resistance

• Designed to resolve intermittent knock sensor codes (such as P0325 and P0327) caused by failing OEM harnesses

• Durable construction to resist heat, vibration, and oil exposure under the intake manifold

• Fully bench-tested prior to shipping

• Compatible with all model years of the Nissan R35 GTR (2009–2024)

Not all wiring is created equally. We use TXL wire featuring XLPE insulation that is heat, flame, gasoline, grease, and acid resistant and is used in extreme temperature applications of -40°F to 257°F!