The ECS mufflers are the only choice available for OE restorations. They have limited choices for the dates so you need to choose one prior to your build date (this is not 329 or 426).

D

Seeking 1969 Lynch Road fender tags/Build Sheets/Window Stickers/VIN - Over 2300 so far thanks to you!!
2018 Demon Challenger PY4 A8 Black Hood
2017 Jeep Trail Hawk
2016 Hellcat Challenger PCP A8
1969.5 A12 Super Bee WM21 V1H F6 D21
1969 Coronet RT B5 D32 M46 N96