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    • Home / Products / M4 Exhaust 2015-2026 Yamaha R1 Street Slayer Half System
    M4 Exhaust 2015 R1 Street Slayer Carbon MC36
    M4 Exhaust 2015 R1 Street Slayer Carbon MC36
    M4 Exhaust YA9944 Component Key
    M4 Exhaust 2015 R1 Street Slayer Carbon MC36
    M4 Exhaust 2015 R1 Street Slayer Carbon MC36
    M4 Exhaust YA9944 Component Key

    M4 Exhaust

    YA9944

    M4 Exhaust 2015-2026 Yamaha R1 Street Slayer Half System

    $ 857.00

    • Street Slayer Half System

      • MC36 Carbon Fiber Canister
      • All Titanium Tubing Catalytic Converter Eliminator
      • Saves 14.5 lbs Compared to Stock
      • Q7 Quiet Insert Available but Sold Separate

      Note: This system may drag during track use at heavy lean angles. ECU re-flash required when removing the catalytic converter on 2015-2026 R1.

      Does not meet emission requirements for street or highway use.

    Because One Upgrade Is Never Enough