79K views · 410 reactions | L5P Tuning is now Available through our official dealers and Authorized Remote Tuning Locations! Take your 2017 or 2018 Duramax to 550 RWHP Tune Only! https://hubs.ly/H0fQlHw0 | Duramaxtuner.com | Facebook
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79K views · 410 reactions | L5P Tuning is now Available through o…
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