Q4 Hex Exhaust Silencer 18-23 KTM Husqvarna GasGas 250 350 450 SX-F XC-F FC FX MC EX - FMF 045627

The FMF Q4 HEX S/A 045627 is engineered for discerning off-road riders demanding peak performance alongside minimal noise. Leveraging advanced chambered baffling and exclusive packing materials, this slip-on silencer delivers substantial power gains across the rpm range while meeting USFS and FIM World Enduro sound standards. Designed for durability and weight savings, it includes a spark arrestor as standard, making it ideal for rugged, long-distance trail use. Manufactured in the USA, this exhaust is the definitive solution for those seeking quiet, race-quality exhaust systems without compromise. Features include USFS and FIM World Enduro compliant sound levels, proprietary multistage packing material for quiet operation, power boosts throughout the full rpm range, and an integrated spark arrestor for off-road legality. It is lighter than OEM systems, improving manoeuvrability, and features robust aluminium and stainless steel construction. This is a slip-on, single-exit configuration, with a quiet insert included. Designed and manufactured in the USA. Item ID: 045627. Type: Slip-On. Configuration: Single. Construction Material: Aluminium. Finish: Natural. Midpipe Material: Stainless Steel. Endcap Material: Stainless Steel. Spark Arrestor: Screen insert (included). Quiet Insert: Included. Weight: 6.1 lbs (2.77 kg). Carb Warning: No. Closed course use only.