Quote:
Originally Posted by illmatic
My PDF that can be found with a google search states:
Upper branch diameter with 4 callouts 42.7mm to 45mm
Upper branch diameter with 2 callsouts 45mm to 48.6mm
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3mm seems a nice size increase, inch conversion for us non metric Americans. Is it worth switching over to the 2017? I want it to make a difference, maybe faster revs?
Upper branch diameter with 4 callouts 42.7mm
(1-11/16") to 45mm
(1-3/4")
Upper branch diameter with 2 callouts 45mm
(1-3/4")to 48.6mm
(1-15/16")