Description
Norifumi Titanium Exhaust: Pictures may differ from actual exahust
Standard = 26mm Header ID
Ideal for stock bore/head up to 170cc w/ 31/25 race head
Bore Up = 29mm Header ID Ideal for 180cc to 197cc w/ 31/25 race heads
Competition = 33mm Header ID Ideal for 186cc and up w/ 34/29 Head – Max HP!!
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