I have AAM 2.5" test pipes and bassani true dual.....i recently removed the exhaust from the test pipe and now i have a leak due to no gasket and the gasket seal being broken from removal of the exhaust.....what gasket seal do you guys recomend? and or what size gaskets?

 

The inner diameter of the test pipe is 2.5 inches? Then you need a 2.5 inch gasket.