Up for grabs is a pair of NOS Walker mufflers to fit 1965-7 big Mercury cars with FE big blocks. They are Walker part#21428 and the boxes were sealed until I opened them for these pics. They are like the day they were made in the early 1970's! Rather than type it all out, I have added photos from the users guide and shown exhaust diagrams for the placement of these mufflers. 

THESE ARE VINTAGE WALKER QUALITY PARTS AND WILL REPLACE THE ORIGINAL MUFFLERS IN FIT, SIZE AND SPEC. THESE ARE LONG AGO DISCONTINUED AND HARD TO FIND! THIS IS THE ONLY APP FOR THESE AND THEY ARE NOT ONE SIZE FITS ALL! STILL HAVE OVER 4000, WALKER, MAREMONT, AND ARVIN EXHAUST COMPONENTS FOR US CARS&TRUCKS FROM MID 1940-1975. IN THE 15 YEARS I HAVE BEEN SELLING THIS STUFF, NEVER A RETURN OR COMPLAINT! WALKER IS GREAT STUFF! BID IS FOR THE PAIR. THANX