vulvafan537240 Posted January 23, 2012 Report Share Posted January 23, 2012 Bought these pipes as bb's but the seller sold a stock stroke cheetah as a 421 to another member so id like to be able to verify that these pipes are bb as described. Are there any measurements I can take to verify? Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted January 23, 2012 Report Share Posted January 23, 2012 Check the inside diameter of the stinger tube. Report back. Quote Link to comment Share on other sites More sharing options...
vulvafan537240 Posted January 23, 2012 Author Report Share Posted January 23, 2012 Check the inside diameter of the stinger tube. Report back. Quote Link to comment Share on other sites More sharing options...
noslo98 Posted January 23, 2012 Report Share Posted January 23, 2012 Is that in inside diamater of the silencer or head pipe? The big bore set I just checked were 1.025" / 26MM that was the I.D of the headpipe. Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted January 23, 2012 Report Share Posted January 23, 2012 You have to check the ID of the expansion. Like noslo said, the BB should be right at 1". The SB should be smaller than that. Quote Link to comment Share on other sites More sharing options...
vulvafan537240 Posted January 23, 2012 Author Report Share Posted January 23, 2012 The id of the expansion chamber is 26mm. Thanks guys. Quote Link to comment Share on other sites More sharing options...
camatv Posted January 24, 2012 Report Share Posted January 24, 2012 where the pipe comes out of the cylinder the exhaust will be the same diameter as the flange. on small bores its a lil bit smaller. thats the easiest way to tell. those look like big bore's Quote Link to comment Share on other sites More sharing options...
RadarRacing Posted January 30, 2012 Report Share Posted January 30, 2012 Those are bigs Quote Link to comment Share on other sites More sharing options...
vulvafan537240 Posted January 30, 2012 Author Report Share Posted January 30, 2012 Yep theyre bb's. Thanks for all the help guys. Quote Link to comment Share on other sites More sharing options...
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