BMW E90 320i muffler exhaust

[fesch03]

nice sound but learn how to rev an engine m8

[ola1ola1]

Nice sound for be a stock exhaust! =O

[khaledhorani]

nice vid...does any1 kno wat the muffler is made of??? (stainless steel, aluminum...etc)...and wat can be used to polish it??????

thnxx

[8nine9ten]

Thanks a lot for your message.

i think the BMW E90 original muffler is made of stainless steel

and has endurance prevending from getting it rusted.

i also tried whether magnet could stick to the surface of muffler or not,

and i found magnet did NOT.

i porish it by using ordinally car washing shampoo.

[tomtom3245]

are you sure they're of stainless steel, most of them are of simple steel...