Two questions actually...

1. Recommend good source for replacemnt 140 exhaust pipe in carbon or st.st.?
Mandrel bent tube definitely preferred! My '70 145S has very funky exhaust. It's the next major item on restoration list.

2. Anybody share any tips on building a stainless steel exhaust? I've got a mostly st.st. exhaust (bought used - materials unknown) on my 260Z. The st.st. part is great - 2.5" dia. w/ mandrel bends and throaty muffler. But the carbon steel part downpipe assembly from the exhaust manifold has rusted through and is fumigating me pretty bad. Where can one find st.st. exhaust pipe materials? What grade st.st. is prefered? Tips on welding?

Thanks !
Later,
Al