I hope because of raining season recently caused this    so I'm gonna monitor for a while. Honestly, my engine quite noisy. When accelerate, there is this weird sound which I don't know whether it's normal since I got it first time when got the car.

Regarding the filter, the response time really increase a lot and seems more powerful compare to stock filter. In term of FC still not sure, as I just install it   I'm 2.0 btw

I also not sure whether will void the warranty after changing filter. Anyone here went to SC with their changed filter? Same question with the DRL. Been poison and tempted to install it