More bad luck at NASA Northwest round #3 this weekend, the weld around the collector broke (finished all races just vary loud and right at the DB limit), this is the second set of BBK 15150 I have had and the second pair to break. Anyone have any suggestions on a better choice as these are not fixable they were already patched up once earlier this season. Ho about the FMS M-9430-P50? or the MAC 1-5/8 shorty ?