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Message: <blockquote data-quote="Bdenmark73" data-source="post: 1493471" data-attributes="member: 29033"><p>Ok so finally got a chance to install the 75mm throttle body and plenum and I like how much smoother the butterfly moves compared to my stock one and gas pedal feels much smoother with the set up as well... but having problems with it at times with shift points and trying to kick down when WOT.  I knew the ECU  would have to relearn the idle and air flow with curves with the change but is it common to not want to kick down into passing gear at 50 or 60 mph at certain times?  Its not doing it all the time, so am thinking it might have to be something it will have to relearn... or am I going to have to do the old drain the ECU power trick and have to let the car start over relearning the new throttle body and shift points?  Any help from my fellow SN95 brethren will be appreciated</p></blockquote><p></p>