DYNO PORT TORQUE: Don't let the design fool you! The Dyno Port Torque pipe barks up top.
On the stock YZ, the DP pipe felt much like the FMF/SX silencer combination, but with a better
midrange hit. On the piston-equipped bike, the DP exhaust produced a hard-hitting powerband
similar to the FMF/SX combo, but with a tad more on top. Definitely a solid performer.
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DYNO PORT MID-TOP: This was without a doubt the most specialized pipe of the bunch. Low-end
power was seriously enhanced on both machines. Midrange was about the same as stock and--as advertised,
top end was off the charts. Perhaps on wide open, sandy tracks, the Mid-Top pipe would be favorable,
but we have no such tracks in our Southern California testing locale.
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