About exhaust risers

[Bob_Koch]

David Erb wrote a great article about exhaust Heat Risers - Fact and Fiction. It's a good read.

http://dodgepilothouseclub.org/know/know.htm

[Merle Coggins]

Well written, Dave. Atta Boy.

Merle

[Reg Evans]

How about this heat riser valve (the lower one in the photo) that can be set and locked down. I don't remember what year or size truck this one came from but I like the idea...... Less moving parts to break!