Installed Volant on my 2000 SE and it fits.
I've driven until about half tank and it's about 180 miles(freeway). Probably about 10% increase
on mileage with 31" Revo's. And the overall performance has improved. About the sucking air noise, you can hear it when you open the door(coming from fender area) but once inside...it's all good. Removing the resonator...it's a b**tch on the last nut by ABS.
Overall, it's worth it..esp. with the price of gas.