Exhaust Q?

[HayabusaLTD]

Is this kind of exhaust set up good or bad for our bikes.  Does it hurt the engine or performance?  Will it be two loud?  Sorry for all the questions, just curious.

 

[johnstein]

oh that depends ? is your bike fast enough ? do you feel you need say an extra 100 ++++ hp ! thats a dump pipe for a turbo set up probably run you just about 5 grand but the performance is bascaly unmatched !