Hkb82

Tested it in manual mode on L9 and I couldn’t hear the noise so I’m almost positive in my case it’s the dfm doing it. To think it’s going to cost 600 Canadian for a pulsar lt to disable dfm really bugs me. Atleast it will also take care of the auto start stop issue and a few others. I really just hope it won’t affect any warranty issues down the road.

My dealer also thought it was the flapper so they warrantied and replaced the entire exhaust. No change I put the borla on eliminating the flappers but still got it. So it’s either the cats or maybe the heat shield on the o2 sensor in front of the cats. I truly think it’s the dfm.

My 2021 at4 6.2lL with 3200km also makes this sound when stopping and at light throttle. I’ve been in to the dealer a few times now and it seems to be a normal sound they at. I can’t believe it is supposed to make this sound. I put a dorks cat back on amd it’s actually more pronounced at stop signs. I think it’s the dfm system. I’m super on the fence about getting a pulsar LT to try and see if killing the dfm also kills the noise.