I got the stock 135i muffler from a friend who had a 135i and upgraded to the PE exhaust at a very good deal (around a 1/20 of the price of a PE hahal).
I also prefer the look of the rolled tips of the stock cars. I like the increased diameter of the 135i tips over the 130i, but still prefer the satin chrome finish of the 130i over the black chrome 135i tips (if only such a part existed!)
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