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The Quiet Thunder Monster baffles are designed to fit stock head pipes on Harley-Davidson motorcycles as well as most aftermarket head pipes
Adult sizes Small to 3XL
The same great sound but higher quality material
They also fit 2009 thru 2020 Harley Touring bikes with Vance & Hines with "Power Duals" head pipes
1 3/4" Thunder Monster Baffle (single) Part # 2004-ea The Quiet Thunder Monster bafflesSingle 2000 Series Thunder Monster Baffle designed for mufflers or head pipes with an INSIDE DIAMETER of 1 3 4". Our baffle is slightly smaller to fit inside of that pipe size. You MUST measure the inside diameter (ID) of the pipe you're installing the baffles in for proper sizing. Typically For: Samson Fishtails straight type pipes (not the muffler style) and more. THIS IS NOT A FITMENT GUIDE, MORE OF A MENTION OF WHAT SOME OF OUR CUSTOMERS HAVE SAID