I got the new euro lowrider and they have a project sentra where they bolt on a stillen high flow filter. the 2001 sentra se has a larger plastic M.A.S with only one tube through it. My 99 G20 has an aluminum M.A.S. with one medium hole and one small hole. does anybody have the 2001 infiniti or sentra and does it have the plastic M.A.S. and is it compatible with the 99. I know that the M.A.S. doesn't need to be upgraded till alot more HP than I have but from looking at the picture in Euro lowrider the 2001 should be alot less restrictive than mine and it has to be good for alittle HP or torque. If a CAI helps free up air then that would have to help a little.