I went for my 2015 Honda City 1.3 automatics 80k service at Honda. The guy told me that cars exhaust grill is blocked and showed me a picture of undergood grill. He said two company option 1( break it cost 4500 2) change it cost 120,000+. He said he can clean it for me unofficially for a cost of 6000. I have no idea about it. Should I let him clean it unofficially? Urgent reply would be greatly appreciated. Thanks guys!