I bought my URD
intake used, and installed it this past weekend. My X-SP came with the Borla intake system (no engine cover).
Installation isnt bad. You can cut the metal with anything, dremel, air body saw, etc. I started with my body saw, but it was messing up so I finished with red and green tin snips. I filed it down pretty, and painted the cut edge and surrounding area factory red to avoid rust. I didnt have the install kit (pattern and "combing" material), but the black door trim material I found at AutoZone
worked perfectly. Turned out very clean and pretty
THere are 5 wires to extend. Again, I didnt have the kit, but not a big deal. Just take your time, and solder and heat shrink everything. I used di-electric grease inside the plug to avoid water issues, as most problems associated with rain are at the plug (from my understanding). Also, push HARD, to be sure the plug is locked in!!! Mine wasnt the first time, but I double checked and tried again.
I spend alot of time playing with the alignment, making sure piping didnt rub anywhere etc... I suggest removing the passenger headlight to cut the hole, then re-installing it BEFORE installing the intake, as after was impossible for me.
Looks like adding power steering fluid might be difficult with this intake, as the piping runs just over the resevoir.... Not a big deal to me, but something worth mentioning IMO.
Peformance--- I didnt expect such a difference above the Borla intake, but there is. Not too much noticeable up until 3500-4000 RPM, then there is a nice increase in accelleration. Very nice on the highway (my drive to work).
SOund--- Again, no real difference at idle or normal cruising speeds in town, untill you stomp on it, or go to pass on the highway. Then, its sounds great!!! Much better then the Borla intake hands down.
I live in SOuth Florida, and because of the HEAVY rains here I installed the K&N dry sock. I wouldnt recommend running this intake (in this climate) without it...
Hope this helps...Good luck.