I just ordered the Berk WAI and am scouring over past posts concerning MAF's going out when I notice even more complaints from early on in the release of the 05's where some people actually didn't even believe people having 3.5's that top out at 115. I tested this and indeed my 05 3.5 auto does top out at 115. It's a strange kind of topping out, someone else described it as getting "floaty." It's not a flat out fuel cut like you'd experience in a UHaul truck at 65, it's just an easing up and refusal to go any faster. I realize the manual models have better tires and a higher spd limit, but if this theory that Nissan set the limit on the auto a bit lower due to the speed rating on the tire, then the dealer should offer and ECU reprogram at no charge once I purchase either aftermarket wheels and tires, or just high speed rated tires. I'm going in to the dealership on Tuesday and am going to start off playing dumb, telling them something is wrong because the car won't go over 115, and then I'll play ball with them and see what I can find out. (I will not have the WAI installed by then.) I live right on I35 and have the luxury of traveling at autobahn speeds between San Antonio and Austin on a regular basis, so this limiter really sucks!(Just pointing this out because it never fails that someone declares 'well ya never drive that fast so it shouldnt matter anyways.') I'll let you know Tuesday night how the dealer has resolved my complaint!