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$50. off all Westers custom programming!

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We're offering $50. off each of the Westers custom programming orders that are placed by Sunday evening (10/24).




30 day free trial, you don’t like it, they’ll either modify it, or send it back and owe nothing!

Lifetime warranty (no cost or fees)

Lifetime updates for all future mods ($45 shipping and handling fee)

Lifetime full price paid credit toward your next custom tune for your next vehicle ($45 shipping and handling fee)

No vehicle downtime! You will receive your recalibrated PCM before sending your core back. Want to upgrade this for other mods in the future? No downtime here either! The same thing can be done for the upgrades too!




Customers have been seeing about 24-34hp from the 5.3 28-50hp from the 6.0 and 25-55 horsepower from the 8.1 motor. The spread depends on how aggressive the tuning is along with other modifications that are done to the vehicle. Fine tuning for other mods will sometimes make more of a different than just running those with the stock programming.


More info and pricing for this programming can be seen in the Truck Ignition section of our website and it is also available for the 2005 vehicles!

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