I have a fairly new Supersprint non-resonated/catted, dual pipe, section 1 for a E46 M3. I purchased and had my local tech shop (RRT Racing in Sterling, VA) install these new back in '22. It was on the vehicle for less than 2k miles (as I went with aftermarket headers and a catted section 1 shortly after install). It has been stored in my garage for the past year and a half. In excellent shape, with minor surface rust on the connector flanges. $400/obo local pickup (western NoVA) or shipped at your expense.
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