ECM tuning modifies your vehicle engine control module to optimize performance, throttle response, and reliability based on real data.

Are your tunes dyno tested?

Yes. Every tune is validated using dyno testing and data logs to ensure safe and measurable performance gains.

Do you offer custom tuning?

Yes. All tunes are custom-built for each vehicle and its modifications. We do not use canned tuning files.

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gm-ls-rtd-access-kit

$299.00

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green

pu

purple

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Vehicle Eligibility & Safety Notice
Down Dirty 84 LLC reserves the right to refuse or discontinue service on any vehicle that is unsafe, mechanically unsound, or unsuitable for tuning or dyno operation.

This includes, but is not limited to:
• Active misfires or unresolved fault codes
• Oil, fuel, or coolant leaks
• Overheating or cooling system issues
• Improperly installed or incompatible modifications
• Unsafe fuel systems, wiring, or mechanical conditions

By booking, you acknowledge that tuning and performance testing carry inherent risks and agree that Down Dirty 84 LLC is not responsible for failures caused by pre-existing conditions or improper vehicle setup.

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