99-03 7.3L General Discussion
hey I was looking around on ebay and I found a advertised item called BIGBOOST! The part says it increases boost and fuel mileage. has anybody heard of it or have it installed? what are your thoughts?
here is the url
1999 2003 7 3 Powerstroke Bigboost Turbo Upgrade MPG F250 F350 F450 E250 E350 |...