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Old 01-08-14, 03:56
Macca2801 Macca2801 is offline
XT-Moto SuperStar
 
Join Date: Apr 2013
Location: Perth WA
Posts: 242
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Think it's about 40mm, typical packed pipe with only a spark arrester screen and no dB killers. Too loud without the screen in but the sound is awesome hahaha
Hope that helps but Ivan measure exactly if you like, not sure if it's stated on tha Barrett website.
Matt.