[Cripsy]

my magnaflow muffler has about 1000 miles on it now, i noticed the sound getting louder, about when does it finish breaking in and stop increasing in loudness?

 

[IcyAccord]

 

[stupidaznmunkey]

my magnaflow muffler has about 1000 miles on it now, i noticed the sound getting louder, about when does it finish breaking in and stop increasing in loudness?

the muffler usually is louder/quieter when it warms up. theres no break-in period for a muffler...at least none that i know of????

 

[NYKnick1015]

well techincally there is a break in period... especially depening on what kind of muffler you have... its usually a couple hundred miles after u install it, but if its getting louder, i would check on that because the noise dampening material can be deteriating on the inside

 

[pbook4g5]

carbon build up affects the noise of the exhaust if its brand new, but not that much. That might be what you are referring to. I know when my buddy had cherry bombs put on his 81 camaro (glass packed) they had a little sheet of paper with them that said as the glass gets blown out some the sound will change.

My borla was installed new and I haven't noticed any change in noise yet.

 

[nighthawk04v6]

New mufflers have packing in them. When they burn off they get loud. My Tanabe's are pretty loud now compared to when I first got em.

 

[ikethegreat]

I noticed my WSII got slightly louder after driving it for several weeks.