Muffler for engine Byson , parts Mechanical Bufflo (MB)
Dimension  : 11" x 6" 
Weight            : 2.5 kg
 
Muffler Requirements
Compatibility: The muffler must match the engine’s exhaust port (often 1/2" to 1" NPT threaded or bolted, typically 2–3.25" bolt spacing for flange-mounted types).
Size and Type: Small engine mufflers are often compact, “cigar” or “pancake” style, designed to reduce noise while maintaining exhaust flow. A quieter muffler (e.g., Briggs & Stratton “Super Low Tone” or aftermarket options) may be ideal but could require an adapter.
Material and Durability: Look for steel or stainless steel mufflers to withstand vibration and heat. Avoid overly restrictive mufflers, as they can reduce power output.
Noise Reduction: Mechanical buffalo engines are noisy due to mechanical and exhaust noise. A larger muffler or one with chambers/absorptive material (e.g., fiberglass) can help, but engine noise may still dominate.
 
Specific Recommendations
Briggs & Stratton OEM Mufflers:
Models like the Briggs & Stratton 394569S ($9.98) or 692038 ($22.27) are designed for small engines (2–16 HP) and may fit if the exhaust port matches (check for 1/2" or 3/4" NPT threads or bolt spacing).
Use the engine’s model number (e.g., Kubota EA300 or equivalent) in Briggs & Stratton’s Parts Lookup Tool to confirm fitment.
Available at shop.briggsandstratton.com or smallenginesuppliers.com.
 
Considerations
Engine Model: Provide the exact engine model (e.g., Kubota, Yanmar, or Chinese clones common in MBs) for precise fitment. Without this, I can’t confirm an exact match.
Noise vs. Performance: Larger mufflers reduce noise but may increase backpressure, slightly reducing power. Balance is key.
Installation: Check if the muffler screws directly into the engine (use penetrating oil for removal) or uses bolts (bend locking tabs back). Replace gaskets to prevent leaks.