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Overview
Base tuner harness plug kit that provides weatherproof caps with factory-style interfaces to protect all exhaust and some EGR harness components on optimized trucks. This is a protective solution for exposed factory connectors — not a tuning device.
Key Details
- Weatherproof harness caps with factory-style interfaces.
- Protects all exhaust harness connectors and selected EGR harness components.
- Designed for tuned or optimized 2024–2026 GM Duramax trucks.
- Seals against moisture, debris, and corrosion in exposed connectors.
Compatibility
2024–2026 GM Duramax 6.6L. Compatible with L5P and L5D engine families.
What’s Included
Base kit: weatherproof caps with factory-style interfaces to protect exhaust and some EGR harness components.
Notes
This kit will NOT cover vehicles where the EGR is still fully in place. It also does NOT cover DEF tank components, CAN piggyback plugs, or vehicles with SOTF tuning caps installed. Those items are sold separately.