Hi all, my bone stock 325i 5MT has been making a very annoying intake noise since I got it. It sounds a bit like the sound symposer noise (aka amplified induction noise) on an old Ford Focus ST, quite low frequency around 290 Hz (measured) at 2000rpm. Just imagine accelerating your car as you...

Like the title says. I get this weird drone like sound when I am in fifth gear at 2500 or higher. It sounds like the wubwubwub you get from a bad wheel bearing, but when I'm off throttle(most times) or below 2500 there is no problem. The car is straight piped 3in off the cat. Maybe I'm just a...

Hey folks, So this is my first post, and I didn't think it was going to be a review of something that I hate, but here we go. I have an 03 325i- no other mods other than a UUC lightweight flywheel, and hotchkiss swaybars (so nothing that changes noise from stock). After reading endlessly...

Car: 2003 330ci So about a year ago I went to a shop to have my exhaust done. I had the guy remove the muffler, and just go with straight pipes. It was great because I got the sound I wanted, and there seemed to be very little drone. Only now I realize that there is drone, and a lot of it, when...

Hello everyone, I have a 2000 323i with no muffler or resonators, conforti CAI and some other mods. I removed the muffler years ago but it's getting way too loud and annoying now that I use the car for work. Sadly, I threw away the original exhaust and muffler, so I am looking for a new one...

Hey Fellow e46rs, After an hour of searching, I haven't found any threads that match my condition. I have two issues that I am trying to work out and need someone else's opinion. Issue (1): I have a loud rumble/drone when my car get up around 40 mph. It is throttle dependent and not gear...