A unique design that provides an unrivaled combination of power and a quiet exhaust note. The RS-4S features a Polyresonant duplex chamber, a two-staged stepped baffle, and an innovative carbon fiber turn-out end-cap.
Sound Level
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Volume Insert | Spark Arrestor | Included |
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SA-13-K-1 | No | |
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RS4S-INS-1 | Yes | |
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No |