Brian, I got K&N's with my SL55 intake. I got it put on today except for the tubes. I didnt have the torx wrench to pull the bumper and get the boxes next to the radiator out of the way. I may take it out, as is, just to see how it feels. I'll finish up the tubes when I put the 181mm pulley in. I hope to get my replacemnt WP pulley by the end of the week. That would give me something to do next week end.

MikeR