FZ09 MT09 Yoshimura R77 Exhaust Sound And Install – Here’s a complete how-to for installing a full exhaust system, this is the Yoshi R77, the non-cat version of the Y-Series sold by Yamaha. This also has a removable baffle that simply requires the can to be removed in just 30 seconds and one set screw to seat in the end. They claim you don’t *need* an ECU tune if you leave the baffle in, but I can tell it has flat spots. I’m flashing. Baffle out you have no choice but to tune. Skip to 9:54 for the sound comparisons.
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