I think I'm going to get the MBRP pipe ( slip on for now) with a K&N jet kit. I've already got a Pro design kit for the air box with the 2 stage foam filter. Now what would be the best setup to get the most power out of this setup? I run at sea level all the time ( Oregon dunes). Should I go with airbox lid on or off? Also what would be the next mod to buy? I really don't race up the hill to much just all around duning, with a run up the hill once in awhile. I'm thinking of getting the ALBA pro comp A arms and shocks then a new axle. Then maybe some nerfs? I have alot of ideas but lack the funds to do it all at once. ( tring to get a toy hauler) And then there is my wifes 400ex that after I put the pipe on my bike she'll probably want one for hers. Any help would be great thanks