I can't give you a very accurate answer on that. I'm sure JL glues the carpet on pretty well but I'm sure it's possible to rip it off and put on something different. You might want to even try to contact JL and see what they have to say.
Just filled up Friday and reset MPG meter and I'm at 12.8 I believe and I haven't left town (all 25MPH short trips). I had my 4R since January and have determined that the MPG computer is always 1.5 to maybe 2 MPG high. I average 19 (by the computer ) on highway doing 75 or 70 (depends if I'm on...
I bought the extended warranty through Shawn at Palmiero Toyota in Meadville, PA like many others on the board. I've only have it for about 4 months and have not put any claims against it. Is it possible to cancel the warranty and get any money back say if I were going to trade the 4Runner in?