ok i bout my s2000 6 months or so ago used... all it had on it when i bought it was jdm clear side markers( no intake, exhaust or any other noticeable mods).. i have been driving around for a lil while now on it and i notice my car whines in lower rpms is this normal? sounds almost like a supercharger noise( no there isnt one on the car haha)anyone have any idea if this is normal or any idea what it may be?. any help appreciated!

Thanks

Jay