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why hydroformed pipes are not as good as welded cones - disc

Posted: Wed Sep 26, 2012 5:02 am
by yamaha_george
Ok so not too much of interest to 4strokers but for those of you who still use the 2 stroke method of quick cheap tuning ............


http://www.pit-lane.biz/t3107-gp-125-250-why-hydroforming-is-not-as-good-as-welded-cones