Factory 4.1 SL Exhaust Silencer 06-13 Yamaha 250 450 WR YZ F - FMF 044235
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
FMF Racing's Factory 4.1 SL Slip-On exhaust delivers elite race-proven performance with proven horsepower increases. It is constructed from lightweight titanium with a striking blue anodised finish. The exhaust features a high-strength stainless steel midpipe and endcap for enhanced durability. This slip-on configuration offers quick installation and optimised performance across the RPM range. It includes a 94dB quiet insert and a spark arrestor screen insert for sound regulation and versatility. This product is designed for closed-course use only. Item ID: 044235. Type: Slip-On. Configuration: Single. Construction: Titanium. Finish: Blue Anodised. Midpipe: Stainless Steel. Endcap: Stainless Steel. Spark Arrestor: Screen Insert (included). Quiet Insert: 94dB Insert (included). Weight: 5.2 lbs (2.36 kg). Carb Warning: No.
- SKU
- 06-1669.FMF.FSA
- Brand
- FMF Exhausts
- Availability
- Out of Stock
Fitments (50)
| Make | Model | Year |
|---|---|---|
| YAMAHA | WR 250F | 2007 |
| YAMAHA | WR 250F | 2008 |
| YAMAHA | WR 250F | 2009 |
| YAMAHA | WR 250F | 2010 |
| YAMAHA | WR 250F | 2011 |
| YAMAHA | WR 250F | 2012 |
| YAMAHA | WR 250F | 2013 |
| YAMAHA | WR 250F | 2014 |
| YAMAHA | WR 450F | 2007 |
| YAMAHA | WR 450F | 2008 |
| YAMAHA | WR 450F | 2009 |
| YAMAHA | WR 450F | 2010 |
| YAMAHA | WR 450F | 2011 |
| YAMAHA | WRF 250 | 2007 |
| YAMAHA | WRF 250 | 2008 |
| YAMAHA | WRF 250 | 2009 |
| YAMAHA | WRF 250 | 2010 |
| YAMAHA | WRF 250 | 2011 |
| YAMAHA | WRF 250 | 2012 |
| YAMAHA | WRF 250 | 2013 |
| YAMAHA | WRF 250 | 2014 |
| YAMAHA | WRF 450 | 2007 |
| YAMAHA | WRF 450 | 2008 |
| YAMAHA | WRF 450 | 2009 |
| YAMAHA | WRF 450 | 2010 |
| YAMAHA | WRF 450 | 2011 |
| YAMAHA | YZ 250F | 2006 |
| YAMAHA | YZ 250F | 2007 |
| YAMAHA | YZ 250F | 2008 |
| YAMAHA | YZ 250F | 2009 |
| YAMAHA | YZ 250F | 2010 |
| YAMAHA | YZ 250F | 2011 |
| YAMAHA | YZ 250F | 2012 |
| YAMAHA | YZ 250F | 2013 |
| YAMAHA | YZ 450F | 2006 |
| YAMAHA | YZ 450F | 2007 |
| YAMAHA | YZ 450F | 2008 |
| YAMAHA | YZ 450F | 2009 |
| YAMAHA | YZF 250 | 2006 |
| YAMAHA | YZF 250 | 2007 |
| YAMAHA | YZF 250 | 2008 |
| YAMAHA | YZF 250 | 2009 |
| YAMAHA | YZF 250 | 2010 |
| YAMAHA | YZF 250 | 2011 |
| YAMAHA | YZF 250 | 2012 |
| YAMAHA | YZF 250 | 2013 |
| YAMAHA | YZF 450 | 2006 |
| YAMAHA | YZF 450 | 2007 |
| YAMAHA | YZF 450 | 2008 |
| YAMAHA | YZF 450 | 2009 |
- General Product Group
- Exhaust Systems & Parts
- General Product Type
- Silencer
- Variant Id
- 209073
FULL DESCRIPTION
FMF Factory 4.1 SL Exhaust Silencer
The FMF Factory 4.1 SL Slip-On exhaust system is engineered for off-road and motocross riders seeking peak performance and significant power gains. Built with advanced technology derived from years of racing experience, this system offers a substantial upgrade for your motorcycle's exhaust.
Key Features:
- Elite Performance: Delivers race-proven horsepower increases across the RPM range.
- Premium Construction: Crafted from lightweight titanium for durability and reduced weight.
- Striking Finish: Features a vibrant blue anodised plating for a distinctive look.
- Robust Components: Includes a high-strength stainless steel midpipe and endcap for enhanced longevity.
- Versatile Design: Slip-on configuration allows for straightforward installation and removal.
- Sound and Safety: Comes equipped with a removable 94dB quiet insert for noise regulation and a spark arrestor screen insert for safety.
- Optimised for Competition: Designed and intended for closed-course competition use only.
Specifications:
- Type: Slip-On Exhaust Silencer
- Configuration: Single
- Material: Titanium
- Finish: Blue Anodised
- Midpipe Material: Stainless Steel
- Endcap Material: Stainless Steel
- Included Accessories: 94dB Quiet Insert, Spark Arrestor Screen Insert
- Weight: Approximately 5.2 lbs (2.36 kg)
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).
Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
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Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
More answers in our FAQ.
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