I know someone brought this up once. I just finished my drive from San Diego to my house in Mississippi. I averaged 30.4MPG while traveling. Never really got out 6th while cruising. Just pushed down on the pedal when I wanted to go a little faster than the law allows. Got on it while coming back on the freeway and such. The Greddy catch can *IS A MUST*! I couldn't believe how much GUNK is in the tube going to the can and how clean the tube going back to the SC. The Thermal R&D turbo exhaust is sweet at cruise speed. The rain down in Texas got me concerned. Well, not really. For anyone pondering gas mileage and the JRSC there it is.