Do stock cats have heat shields built in? - ZR-1 Net Registry Forums

VetteMed · 10-30-2010

My passenger side cat appears to be cracked at the front-most weld. I can push upwards on the flange where the rest of the exhaust connected to, and there's noticeable flex. The driver's side has no flex to speak of.

Is this manifold/cat junk now? Or is this something that could be welded? Am I best off just waiting for a deal on a set of headers? (Might be old and gray before that happens...) Keep in mind, these manifolds have 188k miles on them, but the $1K needed to buy headers is really not there right now.

tomtom72 · 10-31-2010

I don't see why a broken/cracked weld can not be re-welded?

Oh, forgot to answer the headline Q....no our cats do not have any heat shields attached to them like normal cars. All our heat shielding is attached to the block & frame rails, but not to the exhaust system itself.

Tom

10-30-2010	#1
VetteMed Join Date: Mar 2009 Location: Orlando, FL Posts: 1,816	Do stock cats have heat shields built in? My passenger side cat appears to be cracked at the front-most weld. I can push upwards on the flange where the rest of the exhaust connected to, and there's noticeable flex. The driver's side has no flex to speak of. Is this manifold/cat junk now? Or is this something that could be welded? Am I best off just waiting for a deal on a set of headers? (Might be old and gray before that happens...) Keep in mind, these manifolds have 188k miles on them, but the $1K needed to buy headers is really not there right now. Last edited by VetteMed; 10-30-2010 at 12:47 AM.

10-31-2010	#2
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,609	Re: Do stock cats have heat shields built in? I don't see why a broken/cracked weld can not be re-welded? Oh, forgot to answer the headline Q....no our cats do not have any heat shields attached to them like normal cars. All our heat shielding is attached to the block & frame rails, but not to the exhaust system itself. Tom __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member