Quote:
Originally Posted by CSG Mike
The long wavelengths cause the baffling inside the muffler to vibrate... which is what causes the nasty rattling. It's a result of the muffler design, which was designed such to work in conjunction with existing cats on the stock car, to be as cost-effective as possible from the factory.
Now, lets take another example. I have no cats on my S2000. Zero rattling, only a mild rasp at WOT.
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Thanks for the info.
Yes, I do notice many stock exhausts "rattle" ..especially with age/wear. Cheap build quality makes perfect sense. It ain't even insulated after all.
I always plan to have at least 1 cat anyways (I dislike hanging out in public smelling like petrol).