Anyone using , or have an opinion on the Pypes SS exhaust

I have a Pypes 2.5" x-pipe system with no mufflers on my big block '69 Bee. It's only loud if you put the pedal down. If you're just cruising, it's quiet enough that you don't have to yell to have a conversation. The only trouble I had with the install was getting pipe bent to clear the crossmember. It took a few hours to get that just right.