I fooled around whit the ECM Spy, and could not find where to adjust the deceleration, so nope.
Stuffed the meshpipe in the exhaust, and got black flagged out of the track after ~6laps... still learning the turns, and never revved over 4k... 99db when the level was 97db :(
Now planning to put the OEM pipe back while thinking what to do whit the drummer. Need to repack it, and do something to it. Its way too loud for my opinnion. I like the rumble on idle, but on higher rpm's its just too loud. (allready got ears ringing)