I have a 2005 Toyota Tundra TRD (4X4). It has got 42K on it now and has been a great ride.It has an aftermarket breather box(Borla) and the TRD exhaust system. Guessing, I'd say it makes close to 300HP. I test drove the new 5.7L Tundra(twice). I was impressed. It's big and it's fast. It makes 381HP,and with the same set up as my truck it will produce 400+HP. This,while still using reg unleaded. Supposedly TRD does have a supercharger available for the truck that will give you another 60-70HP but that will set you back $3500 or so. Please........sombody get the new 5.7L so they can push me over the edge to purchase. Thanks in advance. EDITED To Add: Sorry folks,ment to put this in "Time for a new truck" thread.