with it. The 16 programs comes with a valet and no start option already programmed in. When I was researching about the 8bit vs. 16bit, there was no advantage to the 16bit that any of the tuners knew about, so I found an 8bit ecu for about $100 bucks. Try to stick to a tt ecu and not an na as you will only get 2 speeds with the fuel pump instead of 3 from the tt ecu, and it cannot be programmed in.