Getting Pulleys, does the car need a retune

[GunmeatalGT]

Hey


So I am thinking of getting some underdrive pulleys for my GT and I was wondering if a new tune form STC is needed?

any ideas.

Thanks

 

[streethorse]

no tune needed

 

[Kilgore Trout]

No, but it is always good to get a custom tune. In fact getting a custom tune would be better than installing the pullies but would cost a bit more.

 

[GunmeatalGT]

Well I do have custome tune for the gears and exhaust etc.

I am going to add the pully's soon and I dont mind getting another tune
but I was wondering if it is needed for pulleys?

 

[BurningRubber]

No, the pullies arent messing with the air or fuel ratio, nor the ignition.

Thats the nice thing about them, slap on and go.