VOE Muffler Video
 

Thought this was pretty cool. Hopefully the link will still work after it's posted...I know ultimate gto doesn't like "hot linking," but I'm giving it a shot... http://ultimategto.com/1970/70_00273_5.wmv

Yep, Vacume operated cut-outs, they have been around for ever!

For the LSx GTO's its a 2.5" exhaust cat-bacl, and we just re-designed the 2.5" QTEC ;-)
(part# qtec50, only draw back is someone has to custom fabricate the actual y-piece that branches off)

Yeah... I know Pontiac had them on the 70 GTO. Never actually saw how they worked until now.

Thats awsome!

thats pretty neat. I never even knew about those.

Wow :stupid:

I posted a link on those mufflers a couple of weeks ago. It was a pretty unique option.