FMF takes fun seriously, so they built the Mini Factory 4.1 exhaust system. It's an all-out performance exhaust for play bikes. With the Mini Factory 4.1, you will be the king of backyard motocross and look great doing it! Each system provides superior power on stock or big bore motors and comes ready to install right out of the box.
Superior power on stock and big bore motors
Stainless steel Hi-Flow header with better flow over the stock design for improved throttle response and greater engine power output, especially at low RPMs
Customize with tuning inserts and spark arrestor (sold separately)
Comes with all required mounting hardware
100% made in the USA
Product Note:
Specification
Details
Country of Origin
USA
Header Construction
Stainless Steel
Muffler End Cap
Stainless Steel
Muffler Sleeve
Varies (make selection above)
USFS Approved Spark Arrestor
Yes
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
Yes, if you were to choose the 2004 Kawasaki KLX110 FMF Factory 4.1 Mini Full Exhaust System from our fit guide, you would indeed receive the correct exhaust system to fit your machine!
we have a 2016 honda crf50f wonting a FMF exhaust. Which Exhast do i need to get for the grandsons 2016 Honda crf 50 f?.
By john
If you were to choose the 2016 Honda CRF50F FMF exhaust system from our fit guide that's immediately to the right of the main image, you'd receive the proper exhaust to fit your machine.
