to stop the popping disconect or block off the AIS system..
i done it with the standard yamaha pipes but was so well
baffled it was hard to hear,,,
you can put kev's fuel controller on it to adjust the
fuel/air ratio...lot cheaper than a power comander...

..

__________________
Harley Davidson..
The easyest way to turn gasoline into noise with out the side efect of horse power...