hi,,, i have a 14 ft sidewinder, with a 351w ford motor, 400hp, with dual 2 1/2id open pipes,,,through hull,,so they are under water a lot,,no mufflers,,,its too loud,,,lookin through your web site i found a
544-2503,,,now the site says "discs only" does that mean only the discs,,,or will that work,,,allso lookin for all the mesurments for this universal and what is the adaptor for.

allso i have a 1975 kz 900 that has the 4 into 1 kerker, but some other manufactures megaphone, or tail piece,,i think its a RC ,,do you still sell the kerker tail piece and how much$$$$$,,,i'm looking for a clean crisp sound,,not all muffled together sound.....