Yes sand then polish.
Got my stromung catback from the group buy and got it mounted. I like how it sounds. Might cut the cat out and put a resonator in.
![](https://uploads.tapatalk-cdn.com/20170419/cdbe65809426e83ca7ae113b720b1c1b.jpg)
Got my stromung catback from the group buy and got it mounted. I like how it sounds. Might cut the cat out and put a resonator in.
![](https://uploads.tapatalk-cdn.com/20170419/cdbe65809426e83ca7ae113b720b1c1b.jpg)
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