While the 3.5L gets the glory, the 2.7L’s "Diesel-Spec" CGI block is the secret to 300k-mile reliability for non-towers. We ...
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Duramax L5P upgrades every truck lover should know
The Duramax L5P is already a powerhouse, but smart upgrades and proper tuning can take it to the next level without sacrificing reliability. From advanced monitoring tools to first-to-market tuning ...
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