I have a FMF Powerbomb - Stroker SX-1 exhuast combo bought from Taffy. He also provided a little aluminium ring that provides the 'seal' between the two but its a good but not a perfect fit and I have a very small amount of carbon 'splatter' which has been shoved out of the tiny gaps that there are still left: a) is this a cause for concern ? If yes, how do I remedy it? Taffy mentioned some 'dog sh/t' if I remember well. Apart from processed PAL I'm not sure what that is! Anybody? c) Aftermarket part ? Tried FMF no response, tried stroker, site is down has been for weeks. NEw site anybody? d) Other Also, the join tightening ring I have is too small. Can I get a larger diamter one ? From where ? NHKevin...you have this combo right ? What did you do ?