The 1970 B-body 383 Exhaust System comes with the correct 2 1/4″ head pipes with correct flanges welded on, correct 383 mufflers with correct flats and date coded, correct 2 1/4″ tail pipes sized and slit for chrome tips, sealant and installation instructions. ¬†We can provide with any kit the exact correct front hangers with single rubber strap, correct tail hangers, mopar style clamps and q-clamps.