Just looking for some opinions here. A while ago I bought a Flowmaster muffler and carefully boogered it onto my stock exhaust tubing. After a couple failed attempts I got no leaks, finally. About 6 months later, I am noticing a hollow whistling/whining sound at certain RPM's (loudest around 2200 rpms). Couple questions:

Could it be possible that a fin inside the muffler broke loose and is causing this distinct hollow, drowning out, whining sound? If not, would an exhaust leak cause that type of sound? FWIW, when I start the motor when it's cold, I can feel no leaks anywhere around the whole exhaust system.

I am considering replacing a small section of my exhaust (just to eliminate the booger welded section) and confused about what type of tubing to use. Summit sells aluminized steel for a decent price, is it possible to weld this type of steel with regular flux core wire? (for regular steel)

Thanks for any, and all input!

I had a header leak/crak and it sounded similiar like it was coming from the back/muffler area... I`ve never heard of a flowmaster wall/inner part breaking, they take abuse and get dented and keep ticking.. so for one to simply stop working would be a weird RARE problen..

Check again for leaks all the way to the exhaust manifold I say. Also check for dents in the tailpipe as weird angls or bends at the en could cause it too

Just looking for some opinions here.

My opinion is that this doesn't belong in "Shop & Tool Talk".

:flipoff2:

Well move it to where you see fit then :flipoff2:

Well move it to where you see fit then :flipoff2:

Bend over :D

I kinda lined myself up for that one :laughing:

Well in any case, do you know if I can weld aluminized steel exhaust tubing with flux core wire????? :D