ok, so me and my friend decided to race, his truck is a bone stock 2003 5.3 ecsb 4x4 and my truck is a 2006 4.8 5 speed with the ram air intake from volant and a dual exhaust, it had a surprising outcome to me, how it went down was that he got me off the line (about a cars length) and then at about 60 mph i got a huge pull on him and beat him by 2 car lengths, my top speed was 95 and his was 85. any one know why i had such a huge pull on him only at the end?