hey guys I have a set of LPP long tubes for my 5.3 they are really noisy (like raspy when I get up next to a building and sound like a leak. is it from when they collect together? anyway to fix this, thanks

 

Have you checked>?

 

it is more pronounced when the truck is cold. so maybe it is a leak. could I put exhaust wrap on it?

 

Its just valvetrain noise.. look for the black sooty areas for leaks but i bet its not leaking

 

I would prob agree it isn't a leak.. do this^.. They are alot thinner then the manifolds are inturn letting more noise out..

 

Yep, same noise here; double and triple checked it, no leaks. It's just the headers.

 

ok thanks for the replies, not exactly what i wanted to hear. i did figure the piping was thinner

 

Just learn to love it

 

You'll get used to it.

 

If the noise is a sharp ticking sound, it's a leak. Anything else is likely just primary tube noise. Like mentioned, the factory manifolds are thicker than the headers, so with the headers you hear more of a muffled, really quick whooshing sound as the exhaust gases blast through the tubes.

An easy way to find a leak is to do a seafoam treatment and crawl under there during the running period. All the smoke will quickly help you find any leaks.