The dB killer does just what it says, kills the sound from a great exhaust. I actually didn't want to keep it installed because it quiets the bike so much, but I need it to pass sound at tracks like Laguna Seca and Sonoma Raceway with their strict requirements. However, when the engine is wound-up the exhaust still puts out a mean, aggressive and well-tuned sound.
Arrow dB Killer Insert
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