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RTD4 Tune Files (2024-2026 Duramax L5P 6.6L) - Global B

Order your 2024–2026 L5P RTD4 Tune File Dieselr now. VIN-matched, +180HP single-level tune. ECM unlock required. Includes free updates.

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RTD4 Tune Files (2024-2026 Duramax L5P 6.6L) - Global B
Starting at CAD $1,800.00
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Share the inputs, we’ll send the plan

Outline your vehicle, performance targets, and timeline. The build desk will confirm availability, pricing, and next steps in writing.

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Response time: 1-2 business days to reply.

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