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Discussion Starter #1
Hey guys,

So I have been doing heavy research on a custom muffler job as opposed to these VERY expensive options from Corksport, Racing Beat, etc. I came across a deal for a Borla Pro XS muffler and wanted to know if anyone has experience with these. I have seen videos of them on corollas and other 4cyl vehicles, but would love to have a Mazda owner's input on sound, quality, and value :grin2:

Also, if I decide to make this purchase, what is the stock exhaust pipe diameter? I would prefer to have a flange welded on so I can return it back to stock if need be for a future selling point.

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