I just got my header put on my car an it sounds like I have a little bit of an exhaust leak is this normal? Should I weld the header where it connects to the cat or leave it clapped. Also when I drive over bumps I hear something rattling from underneath the car any ideas?
Tighten it up it you should have the down pipe welded to the cat. i've had mine for 3+ months with no issues.
gotta get it welded. for sure
looks like im going to weld it an see what happens thanks guys.
you might just be hearing the flow of the exhaust through the header, but you might also have a leak