Upgrading your Chevy or GMC to larger tires is one of the most popular upgrades. That said recalibrating your speedometer typically would require a trip to the dealer. Especially if you are prone to swapping betwen tire sizes for winter or other purposes this can be a cumbersome effort running back and forth. Further when a check engine light pops up wouldn’t it be nice to find and clear the code yourself

Superchips 2545 Flashcal
$74.08