all you guys who have ecu's shouldn't see any mpg degredation. but jwt doesn't make an ecu for me. that being said, i have seen my mpg slowly get worse. until jwt makes my ecu (please), i'll just deal w/ 250 miles to a tank.
stiletto
99 Sentra SEL platinum gold w/ HS headers and CAI, custom b-pipe, arospeed exhaust, magnecor 8.5mm wires, eibach pro-kit, courtesy nissan frt and rear STB, smc short shifter, greddy knob, jwt clutch, k&n crankcase breather, 17 deg. timing, clear corners and taillights and not a single stock bulb.