Originally Posted by dxb335d
It will work, but its in my opinion not the best way of tuning. It tricks the ECU into thinking the fuel pump is not working as efficiently as it could and turns up the fuel pressure. This will give you more HP and also a potentially ticking time bomb with the Fuel pump. Long term issues i am unsure, maybe borewash due to increase fuel flow from the tuning box.
A re-map is programmed thoughout the rev range under different loads makign sure the cars is running its correct amount of fuel for the conditions.
So a remap is a more correct way of tuning an engine right? The only advantages with a box is that you can unplug it before taking the car to service and that you donīt run the risk of the extra power being wiped out if the ECU should be reprogrammed?