SupraFan : if your car is drive-by-wire (not throttle cable), these throttle controllers are exactly that.. they modulate the throttle for you. It's the same thing as you controlling your right foot.
Want eco? Accelerate slower (not stomp the pedal) and gradual. The e-throttle does that electronically so you don't have to do it with your foot.
Want power? Floor the bugger. E-throttle just tricks your ECU to thinking you're flooring it (earlier) so response is faster.
Does it work? Sure. Do you need it? Only if you dunno how to control your right foot. These days however the e-throttles have other features as well, not sure what exactly so just go do your homework for these devices la.
Want eco? Accelerate slower (not stomp the pedal) and gradual. The e-throttle does that electronically so you don't have to do it with your foot.
Want power? Floor the bugger. E-throttle just tricks your ECU to thinking you're flooring it (earlier) so response is faster.
Does it work? Sure. Do you need it? Only if you dunno how to control your right foot. These days however the e-throttles have other features as well, not sure what exactly so just go do your homework for these devices la.