System: Slip-On System Can: Aluminum Shape: Elliptical Forging Kit: No Core Diameter: 2.125 in Shell Diameter: 4in Quiet Core: Yes Forrestry Approved: Yes Torque Range Modifier: No Core Design: Straight
Add the optional quiet core insert and you will go from 102~104 db to 96~98db.
-Volumized, high performance glass wool packing -Available as slip-on and full systems. (see select models) -Available in Brushed or Polished Aluminum and Carbon Fiber -Stainless steel headers and inlets -Made in the U.S.A.