Was on CSC2 now. Even though the remaining tread still got 6mm but the humming sound simply unbearable especially for passeger sat behind. Got a seperate quote for CSC2 and S1EVO from two tyre shop and the different is around $100 for 4 tyres. Need help from bro here which tyre should I take. How come hankook tyre so expensive now day and the price is close to conti now.