When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
the gears limiting the speed would be obvious...i doupt thats it. I have never heard of speed limiter on a stang either but if you have one you would need a tuner to deal with it.
its called a governer and your car should not have come with one. you can take it off, just go to the dealer ship, you should not need a tunner. most rental cars have governer, so i dont think your car has one on it.