OK I've heard of exhaust sound break-in before. I understand some people think it's true, others not, but I had a strange break-in happen...I think.
I got my axle-back about 3 years ago. It came with a silencer, but I never really put it on until about 2 1/2 months ago. My exhaust was always kind of drony and boring (which I expected, since it was an axle back with stock piping from the cat).
BUT...after 2.5 months of having the silencer on, i took it off and the sound is much more throaty/garbly and less annoying. And it's not my ears just getting used to the louder noise again, it's truly better sounding.
Did my exhaust just get broken in? After 3 years???
The "break-in" period should take no longer than about 50-70 FULL drive cycles. The average drive cycle: From a cold start, to full opperating tempature, maintain full opperating temp for at least one hour, full cool down.
This is ther period of time usuialy required to let the metal components settle. On an atomic leval. In this period of time there is a substiantial leval of expansion and contraction. There are many definitions to this, but in order to keep it simple... hey thats just what happens.
When you have a "standard" exhaust, you typicly will not notice a "break-in". Thoes exhaust are designed to be quiet in the first place...
I hope this helps a little. As far as your exh. taking 3yrs... I'd say to you... in a good way though.
Mods: jdm h22, header, high flow cat, cat back exhaust, cai, stage 1 exceddy clutch with 8 pound flywheel, gauges in a pod, system...much more to come
thats weird. sounds like it finally broke in(which is weird after 3 years) or you had a tiny pinhole somewhere in the sxhaust system, probably in the stock piping, and when you put on the silencer it made the hole bigger from the added back pressure and resistance. id look for a hole. if u cant see a hole turn on the car and have someone take a towel and plug off the tip and then run your hands along the exhhaust starting from the header and work your way back. see if you feel anything coming out from anywhere.
Car: 2008 Infiniti G35S and 2008 Mercedes-Benz C300 Sport
Mods: Taillight Overlays and Magnaflow Exhaust
mufflers have something in therelike some kinda of material? mine wasnt too loud but over the past three years my canister style muffler is louder over the years. it gets worn down inside somehow but i dont knoe what the stuff inside is called.
__________________ 2008 Infiniti G35 Sedan Blue Slate/Graphite Interior:Sports and Premium Package 5AT, 2008 Mercedes-Benz C300
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