I went from downpipes to long tube headers and I'm curious what you think. Mine are from Dyno Comp in Scottsdale Arizona and the instal required loosening the engine mounts to lift the engine. The steering box had to be unbolted and some metal on the bellhousing had to be ground off. It was quite an adventure getting them on to say the least.

Sorry for the hijack, good luck with the sale. Whoever buys them, use that extra bung! Mine have it as well as a bung for an exhaust gas temperature sensor. The more you know the better you feel.

Les