Factory4.1 SL (slip-on) 044211 Size:OS This is a great universal

This is a great universal spark arrestor for 2-stroke machines

or in the open desert

Closed Course Big Bore System or as a Spark Arrestor Version

80% Cotton /20% Polyester Pullover Crew Fleece

- Comes with a microfibre cleaning pouch

Factory4.1 SL (slip-on) 044211 Size:OS This is a great universalFactory 4 SL Titanium (Ti) Midpipe Stainless Steel (S S) Midpipe The next evolution of our very successful Factory4. Designed to be a compact perfect fitting slip on, centralizing and lowering the mass of the machine. As with its predecessor, expect an increase in power throughout the rev range and a big boost in the upper RPM. Space Age internal packing for maximum packing life. Compact design for a shorter overall length. Exclusive Oval to Round