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HP Tuners RTD4 supports 300+ controllers with wireless remote tuning, diagnostics, and datalogging via TDN. Available now at Dieselr.
Custom fitments
Tell us about your platform, performance goals, and timeline. We’ll map the parts, confirm availability, and send back a detailed quote with next steps.
Custom fitment brief
Outline your vehicle, performance targets, and timeline. The build desk will confirm availability, pricing, and next steps in writing.
EZ Lynk L5P Tune Files 2020–2023 provide better throttle response and torque for the 6.6L Duramax. Single tune or full support options available.
EZ Lynk L5P Tune Files 2017–2019 improve throttle response, torque, and drivability for the 6.6L Duramax. Single tune or full support options.
DIESELR EZ Lynk Tune Files (2020–2023 L5P Duramax) deliver torque, throttle response, and towing power with reliable, custom tuning.