Under 90 probably ok, most phone mic's only go to around 90db anyway
Sorry but I have to debate the issue with the other poster about using steel wool in an exhaust, and I won't say any more on the subject, apart from, that I hope someone will listen and do the right things when they work on their own vehicle.
/begin rant/
Steel wool that will last about 3 days = $3, bits of flaming steel flying out of the exhausts into the face of the motorcyclist behind you = Priceless.
$20 worth of ceramic fiber from the shop that will last 3-5 years is much better value, and that's what it's designed for , ie it isn't a fire risk.
There should absolutely NO reason to use steel wool, none, it's just a dodgy fix. You are better of leaving it loud until you get the proper material.
It's like putting eggs in a radiator to stop it leaking, banana's in the transmission to quieten the dodgy gear box before you sell it... It's just the wrong thing to do.
If you are selling the bike today,and want it to be quieter... It might save you $20, but it leaves the dangerous safety issue to the person you sell the vehicle to.
If you'r keeping the bike, take the extra time to get the right material and do the job properly, not a half baked "that's good enough".
Anyone who says that it is ok, then they are wrong, because it is not ok. Do a proper job, or leave it for the professionals.
/rant over/
Probably sounds angry, but it's not. I just want to say that if you are working on your own vehicles, then you should do the job like you are a professional. I know my bikes are done to the BEST that I can do, and that if I pass a vehicle on to someone else, I know there is nothing I have done that could cause any harm to the buyer.
