Quiet Core Exhaust Insert — Includes block-off plate

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Quiet Core Exhaust Insert - 1" Tune exhaust sound and power and reduce exhaust sound by 1 to 6 dB’s Work on DG O-series, RCM II, R.A.C.E. and Universal Slip-ons only Easy to instal l by removing rear end cap and placing insert in front of spark arrestor For "O" and "R" Series mufflers Show more