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.
I also have a 97'f250 and when it was still new, I put a chip in it. I believe it was pushing $300. All it did, that I noticed, was hold in gear a little longer when I was pulling my big trailer and it was loaded up. Would so not spend the money again. Way to much, for such little result.
Search for the sixlitre tune up (this is way more effective than a chip, less expensive and will affect the same part of the engine). No cold air intake, they are a huge waste in these trucks, find a 300 or 460's snorkel and replace your stock one, those flow better. No duals, install longtube headers and have a shop make you 3" mandrel bent piping for the single exhaust. Do all these and you will see a lot more power and will spend a whole lot less. Welcome to FTE!.