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- 2002 BJFW, 2007 BK3P, 1979 SA22C, 2005 BK3P
We had a compatibility issue with three of our test pipes. All of them were mated to Mazdaspeed Cat Back Exhaust systems from the dealer. Unlike stock or other systems, the flanges on the MS CBE are not machined. To further ensure total compatibility we have redesigned the test pipes to accept donut gaskets per the image below;