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FMF Factory 4.1 / RCT Exhaust Inserts

Are you looking to quiet your muffler down, or possibly add a spark arrestor? FMF offers a full line of quiet inserts, forestry approved spark arrestor inserts and quiet core/spark arrestor insert combos so you can adjust your exhaust to meet your requirements.

Note: Images are for reference only, actual product may vary.

Fitment Notes & Exceptions
This is a universal fit part; it may or may not fit without modification.
Product Style Item # Manufacturer Product # Availability
Dual RCT Spark Arrestor Inserts / 2 Piece 1047077 040673 Out of Stock
Factory 4.1 / 4.1C 94db Insert 1047079 40631 In Stock: Ships next business day
Factory 4.1 / 4.1C Spark Arrestor (2010 Models Only) 894832 40261 Only 1 Left: Ships next business day
Factory 4.1 RCT 94db w/ Spark Arrestor 1047083 040639/40639 Out of Stock
Factory 4.1 RCT 94db w/ Spark Arrestor / Turn Down 1047085 40669 Out of Stock
Factory 4.1 RCT Spark Arrestor (2011 Models Only) 1013908 40638 In Stock: Ships next business day
RCT Dual Spark Arrestor Insert (CRF250R 2014-2017) 1298721 40682 Available: Requires 1-3 business days of lead time prior to shipment
RCT Quiet Insert w/ 1-3/8" Spark Arrestor 1298722 40683 Out of Stock
RCT Spark Arrestor Insert (YZ250F/YZ450F 2014-2017) 1298720 40681 Available: Requires 3-5 business days of lead time prior to shipment