Pypes exhaust?

Have any of you guys heard of or have exhaust systems from this place? It's called Pypes performance exhaust. they offer X pipes, Mufflers and complete systems for a wide range of mostly older cars. I wanted to get a new system for my formula but wasn't sure who to go with. Any "satisfied customers" out there with their two cents? I want to get a system that comes with a crossover downpipes (for now) and a mufler.

Anyone? Has anyone heard of this place or own their stuff?