No the TES, Tubular Exhaust System is the original Edel headers. The TES comes with a new Y-pipe. No idea on the 79-80 Y-pipe. The TES is about $50 cheaper($510) than the Shortie headers($560) that are yet to be released.
"I'm sick of this sickness, don't touch me you'll get this."
1984 GWag "orphan" for sale
2 x 1975 Matador "murder machines"
1970 SST390 Javelin 10 yr project!