Factory 4.1 Exhaust Silencer 07-25 Honda CRF 150 R - FMF 041291
FMF Racing's Factory 4.1 SL slip-on exhaust is crafted from premium titanium with a blue anodised finish, delivering cutting-edge performance with championship-winning experience. This system is engineered to boost horsepower across the rev range while maintaining a lightweight profile. It features a high-strength stainless steel end cap for durability and includes a 94dB insert for noise compliance on closed courses. The exhaust has a titanium midpipe, single configuration, and weighs 3.4 lbs. Spark arrestor insert sold separately. For closed-course use only. Item ID: 041291.
- SKU
- 06-1725.FMF.T4A
- Brand
- FMF Exhausts
- Availability
- Out of Stock
FULL DESCRIPTION
FMF Racing Factory 4.1 Titanium Slip-On Exhaust - Blue Anodised
Experience championship-level performance with the FMF Racing Factory 4.1 SL (Slip-On) exhaust. Developed with decades of racing expertise, this system is crafted from premium titanium and features a striking blue anodised finish. It is engineered to maximize horsepower gains across the entire RPM range while minimizing weight. The slip-on design is optimized for single-configuration operation, and it includes a 94dB insert to meet noise regulations for closed-course racing. A high-strength stainless steel end cap ensures superior durability.
Key Features:
- Lightweight titanium construction for an optimal strength-to-weight ratio.
- Provides measurable horsepower increases throughout the engine's rev range.
- Features a stylish and protective blue anodised finish.
- Constructed with a titanium midpipe and a durable stainless steel endcap.
- Designed for straightforward single-configuration slip-on installation.
- Comes with a 94dB quiet insert suitable for closed-course noise restrictions.
- Spark arrestor insert is available separately.
- Intended for closed-course use only.
Specifications:
- Type: Slip-On
- Configuration: Single
- Construction Material: Titanium
- Finish: Blue Anodised
- Midpipe Material: Titanium
- Endcap Material: Stainless Steel
- Included Quiet Insert: 94dB
- Weight: 3.4 lbs


