Quiet Baffles
Quiet Baffles
Quiet Baffles
Quiet Baffles for Metric Cruisers
Quiet Baffles for Harleys
Quiet Baffles
Smartpartz for Harleys
Quiet baffles
Quiet Baffles
Smartpartz Hard Kore 
Quiet Baffle
Original Baffle
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Quiet baffles available for immediate delivery.
Call Smartpartz tollfree on 1-800-560-0368 within USA, 
or 714-464-2184.
9am-4pm US Pacific Standard Time

MSRP $69.95 (plus shipping & handling, tax if applicable)
Vance & Hines 4" Twin Slash Round Slip Ons 


2 Hard Kore Quiet Baffle, 
1 Allen Key, 2 Screws, 1 Drill Bit.

Use Loctite on all screws.
Use WD40 on end of original baffle to ease reinstallation.

1.  Remove original baffle / stainless tip from pipe by removing two allen head screws.  (You may need to remove slip on and gently tap from the other end with wooden hammer - place something soft under pipe so that when it does fall out, the stainless tip is not damaged).
2.  Drill a hole through the original baffle tube with the 1/4" bit supplied as close to the edge of the original baffle cap as possible.  See diagram.
3.  Insert Smartpartz Hard Kore Quiet Baffle into original baffle and line up tube shaped tab from Smartpartz baffle with hole you just drilled.
4.  Insert screw supplied into the original baffle through hole you drilled and into tube shaped tab on the Smartpartz baffle and tighten.
5.  Reinsert baffle assembly in exhaust pipe.

* NOTES :  
(1)   The baffles may create a slightly rich condition in some circumstances.  As with all motor modifications, some rejetting may be required.   

Smartpartz Hard Kore Quiet Baffles
for Vance & Hines 4" Twin Slash 
Round Slip Ons
* TM
--5/16" Hole You Drilled
Hole you drilled.
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Baffle tab
Exhaust pipe
Exhaust pipe
Tube shaped tab.
Exhaust pipe
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