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Determine which re-pack kit length is needed for your FMF silencer.  
 
POWERCORE 2, SHORTY, SST and TITANIUM 2 silencers (non-spark arrested)
 
Measure the packable length of your silencer, which is the length of the muffler's shell not including its end-caps.  Choose a kit with a length that is the next size longer than your silencer's packable length.  These kits will compress up to one inch.
 
Example-  If the packable length (shell length) measures 9.75", use the 10.25" kit.
  
TURBINECORE 2, Q and TURBINECORE 2 SST silencers (spark arrested)
  
Measure the packable length of your silencer, which is the length of the muffler's shell not including its end-caps.  Subtract 5.5" from this length to account for the spark arrestor assembly.  Only the front section of these silencers require repacking.
 
Example-  If the packable length of a TURBINECORE 2 is 14", subtract 5.5" for the spark arrestor.  The remaining length is 8.5".  In this case, the correct size is the 8.75" long kit.    
 
 
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7.5" Length 8.75" Length 10.25" Length
Price: $20.40
Price: $20.40
Price: $20.40
Part# D1-0075
 
Part# D1-0875
 
Part# D1-1025
11.75" Length 13.5" Length
Price: $20.40
Price: $20.40
Part# D1-1175
 
Part# D1-0135