Yamaha

Yamaha R7 exhaust sound

689cc CP2 parallel-twin

Common sound goals

Same CP2 heart as the MT-07 in a sport body — riders want a deeper, racier note.

Slip-on vs full system

Slip-on deepens tone; full systems target track riders.

Drone / loudness risk

Moderate; baffle choice matters.

Tune requirement

Recommended for crisp fueling.

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