Anyone got a line on a good tuner for a Duramax? Looking for something that won't wreck my engine but gives a noticeable boost. Prefer a company that actually answers emails.
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Anyone got a line on a good tuner for a Duramax? Looking for something that won't wreck my engine but gives a noticeable boost. Prefer a company that actually answers emails.
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Check out 5 Star Tuning. They did a custom tune for my LML and it's been perfect. They didn't just give me a generic file; they tweaked it based on my mods and driving style. Definitely recommend.