Exhaust Silencer FMF Factory 4.1 — Honda CRF 150 R, CRF 150 RB 2007–2026, titanium muffler, titanium header, blue (4T)

The FMF Factory 4.1 is a four-stroke silencer focused on power across the range and on the lowest possible weight — it's among the lightest mufflers available. Factory Forward Engineering centralises mass and improves handling. It can be fitted with performance tuning inserts and a spark arrestor module. Fits: Honda CRF 150 R (2007–2026); Honda CRF 150 RB (2007–2016). Specifications — muffler material: Titanium, pipe material: Titanium, end cap material: Stainless Steel, muffler finish: Anodized Blue. Note: does not meet the 2025 FIM sound limit — intended for practice and closed courses, not for FIM-sanctioned racing. Delivery 5–8 working days. SKU: 041291.