RichJ

Does anyone see any long term problem with cutting out the annoying metal plumbing of the AIR pump system and running rubber hose above the motor instead? This is what I've done and I'm wondering if it's safe to leave alone since I'm running cats on my car again. The only issue I can think of is heat from the headers on the hose and potentially melting the hose if one of the check valves fail.

It is great for working on the car though since those stock metal pipes always seem to be in the way of everything when you are working under the hood.

LT4POWR

I tried it and the hoses kept melting. Good Luck

Geezer powered

Well the only long term promblems would be like you said from the heat.From the factor they used metal for some reason and that is probly it.

TheHeadFL

LS1s use all rubber, from the factory, I believe... so take that for what its worth.

chevroletfreak

My 93 also has all rubber going to the check valves. They run just above the valve cover.