Hi Jay,
As many already know, using an exhaust pipe designed for other uses often degrades power.
So far I have seen flexable electrical, flexable LP gas line, and aluminum tubing connected to motors.
We only use "real" exhaust flex pipe because of the design. Real exhaust flex pipe costs more, but it has a smooth interior and doesn't leak.
Just remember this......."Ruffles has ridges, and exhaust sytems shouldn't"
EZM did extensive tests on exhuast pipe design, size [ID], and length. We even tested for top end, mid range, and low end torque, and tuned our system for best overall performance.
glacknoid.........
The Q-Matic & Silent Power have spacers to allow sprocket [or clutch] alignment. The drive sprocket can be moved to the right or left and spacers [shims] can be used to move the sprocket even more. The new "Silent Power II" will allow sprocket placement that can vary as much as 1 1/2" from left to right. Please note the "Silent Power II" is currently in testing and Mike and myself are working on re-locating & designing a new belt tension system.
Have fun,