So I did the deck plate mod the day I got the tacoma (about a year ago). Been running it ever sense. The other day I took my truck through the wash and put the plate back in before going through. Left and forgot to take it off. Next day I leave on a trip of about 5 hours of interstate driving. I noticed while getting on the interstate and while running, it feels like my truck is sluggish, almost like I'm towing a small trailer. Took the truck longer to get to 70mph, and seemed like it was struggling. Once at 70-75 it'd run there, but felt like it was harder for the truck to maintain that speed. Again, almost like I was pulling a small trailer. I stopped after about an hour at a rest stop, thinking the deck plate might have something to do with it. I took it out, then started her back up and off I went. Truck ran 70-75 much easier, and didn't have the same sluggish feeling.
Is the deck plate really that much better, or was my truck just used to the more air and the computer was a little confused? Or did I make this all up in my head and my butt dyno needs calibration?