X-pipe vs. H-pipe

I've had both. The H I couldn't tell no difference but the X I could. With X the exhaust DID get quieter so I new it was working. Back in days when I started fooling with cars it was the H but later on the X popped out of the woodwork and everyone started using it instead. With that said I'm not saying the H does not work. I believe that any dual exhaust system needs a H pipe regardless of the HP level of the motor. I have some improvements down the line that will further enrich the usage of the X so I'm looking ahead. There are a few stroker motors that I have seen with just the H so there is always many opinions about the two.