Ceramic coating is a great idea. I'm saving my pennies right now to pick up a pair, and once the weather turns warmer hopefully I can install them.
I have an xi so fitment can be a bit different with some things, like the midpipes. If I can find another 328xi in a local junkyard I'll grab those midpipes and delete the cats, that way I can run catless and then swap some cats on when it's time for inspections. At least, that's the plan, we'll see if I actually find any in junkyards haha.
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2008 328xi
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