Exhaust Pipe Rain Cap / Flapper - H/D Truck

A Rain Cap Prevents Rain & Condensation From Leaking Back Into the Mufller and Exhaust System When the Vehicle is Not in Use. Each & Every DYNOMAX Product Is Backed By Engineers Who Know What You Want & Expect Out Of A Performance Exhaust Product & Who Exceed Your Expectations Every Time. All Necessary Parts and Hardware for Complete Installation of Rain Cap. Works On Any Vertical Exhaust or Stack Pipe. Made With the Highest Quality Materials & Workmanship Attainable. Manufactured to Meet or Exceed O.E.M. Specifications in Function, Form & Fit.