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Shibby Plug-and-Play Wiring Harness Adapters for Diesel Delete Tuner Installs If you've done a delete tuner install, you know the wiring is the part that makes most guys hesitate. Cutting into your factory harness feels permanent, and one wrong slice can turn a straightforward install into a real headache. Shibby harness adapters fix exactly that. These plug-and-play wiring harness adapters let you connect your delete tuner directly to your truck's OBD-II port without touching a single wire under the hood. Legal Notice: Removing or tampering with emissions equipment may violate the federal Clean Air Act and state emissions regulations. Penalties can include fines up to $5,000 for individuals. Check your local and state laws before modifying emissions equipment on any vehicle driven on public roads. What Are Shibby Harness Adapters? Shibby Engineering built these harness kits specifically for diesel truck owners running delete tuners. The idea is simple: instead of splicing into your factory wiring, you plug the Shibby adapter into your existing OBD-II port and harness connector. The adapter does the bridging for you. No cutting. No soldering. No zip-tie engineering that you'll regret six months later. Just plug it in, route the cables cleanly, and your tuner has what it needs to run. Why Cut-Free Wiring Matters Keeps your factory harness intact — your truck's original wiring stays untouched and reversible No corrosion risk at splice points — open cuts in wiring are entry points for moisture and "green death" corrosion Cleaner install — OEM-quality connectors that fit exactly as designed Faster install time — skip the wire-by-wire splice work entirely Resale-friendly — unplug the adapter and your factory harness looks untouched Compatible Trucks and Tuner Platforms Shibby harnesses are designed for common diesel platforms where OBD-II delete tuner installs are most popular. That includes Cummins-powered Ram trucks (5.9L and 6.7L), Duramax GM trucks (LML, LMM, LBZ gen