I took off the stock heat shield and didn't put it back on or a new one. Is that bad?

 

my knowledge about cars is about mmmm this big ----l l----

 

I haven't been running the heatshield above my cat for a couple years. No problems.

 

I took the one below out too.

 

miss read...I took the heat shield off both the top and bottom part of the header...I havn't touched the cat heat shield

 

Make sure the heat shield bolted to the chassis, above the cat isn't rattling against it.

 

That maybe the problem. Just messing with for a little bit today, if I play with the heat shield on the cat at all it sqeaks a bit. I guess I will just wait till my hi flow cat comes in and see what happens. And the heat shield is coming off the cat tomorrow. Oh and another thing is it ok to not have the stock heat shields on the new header? My engine isn't running any hotter so I dont find a problem with it but maybe other parts in side the engine bay may not like it, any comments? Thanks

 

You would need to fab up some way of mounting heatshields if you want to run them on an aftermarket header. Having no heatshields does raise engine bay temps. Having a CAI or using header wrap can alleviate that.