Stainless Works 20-21 Ford F-250/F-350 7.3L Headers 1-7/8in Primaries 3in Collectors High Flow Cats

20+ Ford F-250 and F-350 7.3L headers with 1-7/8" dia. primaries and 3" slip fit collectors with merge spikes. Includes 3" lead pipes, hi flow metal matrix catalytic converters. Connects to OEM or Stainless Works catback systems for a full performance exhaust.