well im not a fan of the aftermarket exhausts that came out for the 05-06 zx6 so i made my own.. here have a look...
stock header off ebay $41
various stainless steel pieces $35
unused muffler repack $10
i should have the slash tip on tomarrow. as far as sound its about as loud as my friends gix6 with a d&d
sorry my welds look like ish ma bad