OBX donut gasket size/Stock size?

ho bag

Member
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2007 Mazda5 GT
Getting ready to install a header on the p5 saturday but im going to replace the donut gasket as well.

Does anyone know the stock/obx size donut gasket? In the past i goto an exhaust shop and get them for liek $5 but i needs to know the size before hand.
 
if the donut gasket on your j-pipe is still good, you can take it off and reuse it! those things last forever and are reusable unless yours have crumbled apart!
 
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