Mazdaspeed3 Downpipe Gasket & Plate
This is a our hardware required to adapt our downpipe to the stock cat on the Mazdaspeed3.
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Quad Stage...
Initially designed for professional drag...
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Standard...
Simple, inexpensive, and effective way to...
This item is required if you plan to use the stock cat. If you do not use these you will have a leak between the downpipe and factory cat location. Due to the 3 inch flat flange to donut gasket on the factory cat pipe.
