Frosty,
NOTHING in the rc8 manual illustrates/nor eludes to the fact that one must "cut" filters. Pg.41 is the air filter assembly steps, its VERY straightforward, not much info there to confuse IMO. Bottom of the line is this bro, you did'nt do your homework, you lost an engine.......big deal............its part of learning, but it was YOUR fault. As far as the instructions on the P-S-R products, they probably assume that anyone that is buying a "competition grade" filter assembly is going to be knowledgable enough to install the correct elements in the correct places, they are just making good stuff for us to use, this isnt rocket science, its an air filter......hence no directions................good luck and warm regards to you getting back up and running Frosty