Especially if you have a CAI. I left for work this morning. I didn't realize just how deep the puddle near my hous was (moreover, rain in January? ). I hit the puddle and absolutely hosed the inside of my engine bay. The car started to stumble, so I hit the clutch. It stalled and I pulled over. I tried to start it - nothing. Tried again, nothing. "Aw, fuuuuuuck...." I thought. I gave it a moment and tried. The engine struggled to life. I listened, and it idled smoothly. Whew. So I continued to work. I noticed that I couldn't accelerate past 3000 RPM - it felt like the fuel cut was coming on. "No big.....probably still wet." So I got to work slowly, and without incident. I parked the car; it seemed to be running fine. I revved it up to see how it responded. 3k....4.....5....all good. All of a sudden BUP it misfires. I let the throttle out immediately. Now it's running like ass. Shit. Well, nothing to be done with it now. If I've cooked the ignition or (God forbid) bent a valve I'll have to deal with it later. So I go about my day, but inside I'm all Thank God everything dried out - it's running like a raped ape now. It still got a little hesitant in the wet weather, but that probably has something to do with the filter getting hosed by the passenger side front tire. So, I've finally stopped procrastinating and ordered a new fender liner.