Saw a Fatboy in Trivett last week with V&H slipons, they looked great.

Question is are V&H louder than S&S or the other way round and which would be better in perfomance?

I have been told the S&S are better perfomance and a quieter system, by a dealer though and we all know it is a matter of opinion here.

I have s&s, did a bit of research on internet before buying and s&s came up for me. Local dealer said they dynoed several slipons and s&s were the best. They said some even lost horsepower