Muffler Mini Sprint 1-3/ 4in Inlet

The Muffler Mini Sprint 1-3/4in Inlet from SCHOENFELD is a compact, high-performance exhaust silencer engineered for mini sprint racing and small-displacement engine builds where space and weight are critical constraints. This muffler is designed for racers and hot rodders who demand effective noise suppression without sacrificing the compact footprint required in tight engine bays or lightweight competition vehicles. Whether you're running a mini sprint car, vintage kart-based racer, or small-block modified engine, this inlet-sized muffler delivers the acoustic management needed for track compliance while maintaining exhaust scavenging efficiency.

The 1-3/4-inch inlet diameter is optimized for low- to mid-range displacement engines, ensuring proper back-pressure balance and exhaust gas velocity without choking power delivery or creating excessive heat soak in confined spaces. SCHOENFELD's precision construction delivers internal baffle geometry that reduces decibel output while allowing smooth exhaust gas flow—critical for maintaining horsepower in racing applications where even marginal restrictions cost lap time. The compact 14.2-inch length and lightweight 2.74-pound design minimize chassis weight and packaging complexity, making this muffler ideal for tube-frame racers and competition builds where every ounce matters and header integration must be space-efficient.

Mini sprint racers, vintage modified competitors, and custom engine builders benefit most from this muffler's proven performance in rule-restricted classes where noise limits are enforced but displacement is capped. Installation requires a 1-3/4-inch exhaust pipe or header outlet—verify your tubing diameter before ordering to ensure proper fitment. This muffler integrates seamlessly into custom exhaust systems and pairs well with mandrel-bent or hand-formed headers for optimal scavenging characteristics and consistent power delivery across the RPM range.