The programming is done by using the EzGo PassKey which is the only correct way to upgrade your controller and does not void the controller warranty. We also have the Curtis 1314-4402 Full Function OEM Level Programming Computer WorkStation And can perform a higher level of diagnostics and programming for your Curtis Controllers. The price includes only the Speed Upgrade for this controller. No other testing or diagnostics are included in this price NOTE: This is a speed enhancement product and as such higher speeds will be achieved with your vehicle. By making this purchase the buyer agrees not to hold the seller responsible for any accident or damage that may occur due to this modification or anything else related to this modification. Please allow time to adjust to higher speeds and bra.
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