The gakset between the cat and header on my forcedfed street headers has died after one of the springs failed. Does anyone know what OEM application they used for the gasket and spring. Forcedfed has been totally useless. I have tried a few different 2.5" donut gaskets and none fit well enough. I have a time attack this Sunday and won't be able to pass tech with a leaky exhaust. Any help would be appreciated.