Hi Ron, I brought this exact topic up over a year ago but nobody wanted to hear about it. Go figure!
But now that the cat is out of the bag it is time to start making collectors of different lengths to see which one makes the best TQ at what RPM. Then you can have a collector for each track.
Or just require the stock unaltered piece be used.
Hey Hanksville, do you have any dyno info for this piece?
And let me say that I am all for you making a profit in your business and for the support you have shown our series. i just feel the same as Ron that this is outside of the intentions of our rules.