FMF 4 Stroke Exhaust

You are viewing a combination of machine-specific and universal parts. Please choose a machine to display parts specific to your machine or select a part below.

Choose a machine

User Tip: If you're unsure of your vehicle type, you may skip the machine type selection box.

Use one of my Saved Machines

Select a machine to filter productsRemove all saved machines

2025 HONDA CRF250RX
Delete this machine from profile Select this machine
2024 KAWASAKI KLR650 Adventure ABS
Delete this machine from profile Select this machine
2021 YAMAHA WR450F
Delete this machine from profile Select this machine

See all saved machines in your profile to filter these products

Latest Exhaust Reviews – You could win up to $500 for reviewing products!

FMF Factory Fatty Pipe
Dylan in PA
Don't buy for enduro use
It was a good pipe a start but as soon as I went down into some dirt it completely flattened it at the neck I've had other fmf pipes that have been beating on way harder then this smashed on rocks rolled down hills.
Read All Reviews
FMF Power Core II Shorty Silencer
steven in PA
Great Product
Easy installation. Sounds amazing! I've always wanted a new pipe and I couldn't be happier with the quality!
Read All Reviews
FMF Power Core II Silencer
Matt in KY
FMF Power core Silencer II
Silencer looks great and sounds great with noticeable performance increases
Read All Reviews
FMF Power Core IV S/A Silencer
Tyler in ID
Spark arrestor not installed on delivery
Haven't ran the exhaust yet but it most definitely did not come with the spark arrestor installed and no instructions for how to do it. So be aware of this when you buy it
Read All Reviews
FMF Turbine Core II Silencer
belsam in NJ
Great muffler
Great spark arrested muffler that does not sacrifice performance or sound.
Read All Reviews
FMF Wash Plug
Jake in AR
Solid plug
Solid plug! Works great for my KTM, while power washing.
Read All Reviews