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For a comparison, attached are dyno numbers from the same dyno, on the same bike, by the same technician, approximately 90 days apart on Stage 1 vs Stage 2. The only difference between stage 1 and 2 was addition of the SE-255 cams and SE Heavy Breather. The ambient temperature and humidity are close. Stage 1 was at 1000 miles and Stage 2 at 2500 miles.
Bassani true dual exhaust, Screaming Eagle slip-on slash down pipes, stage 1 upgrades with EFI race tuner kit, dyno tuned.
Stock: HP 66.86, max torque 74.47
Upgrades: HP 72.31, max torque 77.07
HP: 8.2% gain
Torque: 3.5% gain
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