Yeah, in standard form it holds the throttle open for a bit when you come off the pedal...makes for revs holding on during fast up shifts and on liftoff into hard braking the car tends to keep driving for a split second . At first I thought it was just me, but both Dean and John Fowler noticed the same thing the first time they drove my car. It has certainly improved after the ECUTek re-adjustment.

I noticed the 'rev hold/over rev' thing too when i drove a friends DBW Lib GT - took me by surprised when it happened - i had to re-assure him that it wasn't my driving that was causing it and that I wasn't riding the clutch and/or dragging the throttle on gear changes.

I prefer the ole fashion cable throttle feel.

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MY09 Evo X - 1.6bar@3500rpm - got lag?
Barbagallo - 56.03 (S); 1:08.09 (L)
Collie - 50.77
Possibly the most under-driven Evo X in the world??

Marketing has something to do with it as well. An example is Subaru offering SI drive for the Liberty GT's.

J

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"You can turn your back on a person, but, never turn your back on a drug. Especially when it's waving a razor-sharp hunting knife in your eye." - Raoul Duke

makes sense to have lag in a electronic system

however putting something in line in that system cannot speed it up that signal only slow it down, so this is snake oil at best.