If the price range is what you can afford I would look into getting the 6-speed. I've had mine for 2 months now and loooooovvvvvee my 6 speed (5600). Even sitting in stop and go traffic on the beloved parking lot AKA the I-405 between the 101 and the 10. Even with the stop and go I don't notice a thing. I just like listening to the turbo. BTW - I found mine on truck trader in Arizona. Paid 21K for a 25k truck. No problems and it was in immaculate condition. Good Luck.