Sure bhai jee, I'll update after silencer check up. My car is 2006 model so according to hashim sb above, it does have cat converter in it. So far I am in Lahore for office duty. Will go back to Fsd (my home town) on weekend. Till then, I am running the car with this sound assuming it is not that much dangerous. From tomorrow to Friday, I'll be driving my car inside Lhr for approx 50 KMs per day. What do u suggest? Should I get it checked it in Lahore or wait for getting back to Fdd