Scott replied the topic: Re:NFS 2-Stage Tuned Pipe
Being that a QD is just basically an Exotic Zenoah with larger ports, The power gains the NFS pipe does for a Zenoah would translate into equal gains when used on a QD.
See no reason why it would not be a great choice
2 stroke Engine Tech of 30+ years, Prop tweeker, Chronic tinkerholic, Home of Motor Heads RC Racing Engines ...
8 time NAMBA National 6 lap heat racing record holder.