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Installing quiet insert 21905 in Vance & Hines 4 1/2 in Hi Output mufflers results boosts power, much quieter, smooth acceleration, mellow deeper tone. A must do. Remove 2 end cap screws, forget hook tool & slide hammer it will tear up baffle parts. Liberally apply WD-40 in gap between cap & pipe a day before install. Using a sturdy strap wrench on baffle cap turn and pull cap & baffle assembly free of muffler pipe. This could take some turning, pulling effort & time but no damage to parts, don’t give up. Once cap baffle assembly is free pull baffle and sock assembly out just enough to expose insert installation bolt hole, apply Loc-Tite install same & torque bolt to specs. Slide baffle assembly back tapping with block of wood until seated in pipe, replace, Loc-Tite & torque end cap screws to spec. Now enjoy the V&H Hi Outputs as they were designed. BTW be sure to install a VFC III fuel control from Rylan Victory Shop, a must for optimum performance along with Lloydz ATW +4 and Victory Hi performance air filter.http://www.victoryforums.com/images/VictoryForums_2015/smilies/tango_face_smile_big.png
 

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Those look suspiciously like the Thunder Torques I just installed in my Miller Mufflers tonight.....and I really like your report :cool:
 
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