[sstoner911]

I was considering buying the hypertech speedo calibrater but I want sure that would write out my custom tune....

The guy who did my tune is only going to charge me 50 bucks to update it...but hess an hour away typo.

 

[silveradotrailblazer]

I'd get the guy that did your custom tune to update it.

 

[ajarman]

I'd get the guy that did your custom tune to update it.

X2 on what STB said.

 

[Chad513]

X2 on what STB said.

X3 on what they said. Be safe not sorry.