Originally Posted by Modshack

I went with the Steeda skip shif/Cai tune...Bought the whole package right from them and it's good...Great support and performance. The only idle issue is a Mustang thing, not a tune issue. A little variance in idle speed and only when the AC is on. There's apparently a TSB on it, but honestly, it's a minor issue....One I don't intend to pursue it's so minor..