Originally Posted by aznitronut

Monty, I have an Old (like me) Nova Rossi Top P5, I won a few years back, its a CEO modded engine, ran like a bat out of hell, and sucked fuel just as quick also, with an 9886 pipe at that time, I was going to try it out in truggy, it has crazy bottom, I changed the head button from std, to turbo, I ran the 9901/021, pipe, would the 2096/ 021 combo be better for fuel mileage, I also am using a 6.5 restrictor.