Zillaguy Posted September 7, 2013 Report Posted September 7, 2013 About to buy a new set of CPI in-frames from a friend of mine, he is not sure if they are SB or BB... Is there a way to identify them by looking at them? They are brand new w/silencers, never installed $600.00 Just bought his new never installed chrome Durablue +4 axle for $100.00! Quote
ban565 Posted September 7, 2013 Report Posted September 7, 2013 You have measure the id at the end of the pipe. Small bores are 7/8" and bb are 1" 1 Quote
Nightmare Posted September 7, 2013 Report Posted September 7, 2013 I'm pretty sure the bb are unstamped also. Sent from my SGH-T679 using Tapatalk 2 Quote
RagunCajun Posted September 8, 2013 Report Posted September 8, 2013 small bore in frame CPI's come in stamped and unstamped. Mine are unstamped. Quote
BeeCanBanshee Posted September 8, 2013 Report Posted September 8, 2013 How do you tell the difference on Oof? Quote
ban565 Posted September 8, 2013 Report Posted September 8, 2013 I don't how to tell the difference with oof. Call cpi they can tell you. Quote
locogato11283 Posted September 8, 2013 Report Posted September 8, 2013 Measure the outlet of the expansion chamber. Pretty simple. Quote
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