not sure if I'm way off base, but I posed this question in my low mpg thread but figured I'd ask directly here. I have an 03 L and searched but couldnt find how big the stock wheels and tires are, but the dealer slapped on 20" wheels and 295/50/R20 tires and I had a thought. Assuming these are bigger than the stockers, will these affect the speedometer and odometer readings in my car? will it lead the ecu to read I've traveled less distance than I really have or is that backwards? I have a predator and wonder if I should check to see what tire size its set for, whats the best way to measure diameter? tape measure? am I off base with this thought?