Stainless Works 2011-14 GT500 Headers 1-7/8in Primaries High-Flow Cats 3in H-Pipe

2011-14 GT500 1 7/8" headers and lead pipes. Tig welded 304 s/s headers with 3/8" thick flanges and smooth flow collectors. Oval exhaust ports that are an exact match to the factory cylinder head. 3" OD slip joint collectors with merge spikes. Includes 3" dia. lead pipes with high flow metal matrix catalytic converters and H-pipe. Fits factory connection point for use with factory or Stainless Works exhaust. 2011-14 GT500 1 7/8" headers and lead pipes. Tig welded 304 s/s headers with 3/8" thick flanges and smooth flow collectors. 3" OD slip joint collectors with merge spikes. 2011 thru 2014 Ford Mustang GT500 5.4L & 5.8L