Keep the couplers loose til you have it all in, then tighten them down. You may want to redrill teh holes in your battery tray to move it towards the pass. side just a little for more clearance (I didnt need to, but some have). A Dremel works well for cutting the fender hole...as I hear so does a grinder wheel. It makes it a "little" easier if you jack the front and remove the drivers side tire...you don't have to, it may just make it a little easier for you to install the filter on the lower pipe. If you run into any problems, post them and they will get answered.
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Brad B. 96 SE-R
PR CAI,HS Gen 4,GReddy Catback, ACT,ES motor mnts,1.8 dropw/AGX's,F&R STB's,17deg timing,91 intake cam,NGK wires,205/40/17 Kumho 712's,SMC short shifter,Royal Purple synthetics..AND A VANILLA AIR FRESHENER!