That's pretty much my plan, if it is even needed. I'll have to redo the pipe to fit a presilencer, which is why I haven't yet installed the dern thing.
I'm thinking an increase from 2" to 2.25" or 2.5" might be a good idea for the 13B, particularly after I freshen it up, and do the porting I want to do. Every little bit will help.....
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