Tonabe Mufflers over priced???

Tonabe Mufflers goes around $500-800. And the compony and people say that it gives you alot of HP!!! So I whent and asked this guy that works in an IMPORT Shop about it. He said, "Tonabe mufflers are hella good mufflers but. there over priced! You could go to a Muffler shop and get custom piping for about $100-200 and get the same performace as a tonabe Muffler system. But you will need a good Muffler at the end. I was wondering if this is true?????

I think the tanabe racing is much money.
I got a look alike for $200 just for the muffler.

the thing with the tanabe systems is that they are tuned for each application to offer maximum HP and Torque increases across the power band, something you surely wont get with a custom made midas system.