Any Proton Waja owner have face with not stable idling? My waja idling get worst just when i switch on AC. With AC turn off its idle nicely. Lot of mechanics say that my TB kong already. Refer to motorsport...
I have HKS Hi Power exhaust 3", which is a bit loud (not for me though)..
so, what's the best way to lower down the noise inside the cabin? I dont want to change the exhaust yet because I like the sound and...