so guys after switching stock suspension to hks hypermax 2's car picked up vibration under low rpm acceleration. somewhere between 2-4K rpm region. it only vibrates under load. no vibration when brakeing. if I put it in neutral and coast no vibration but can hear some rotation dependent sound. how to describe... some grinding like sound. when the car slows down it grinds with less interval as well untill full stop. seems to me, it comes from front left side

did all four wheel alignment, tried three different sets of wheels and tires. more or less problem still remains on all of them. started right after coilover swap.

any help is greatly appretiated