[2023_ZL1-AUTO]

Hi All,

So, I have a small exhaust leak at both drivers and passengers side CATs (1st CATs, secondary's were deleted), at the lamp joint clamp. So it's where the end of the CATs connect to the rest of the exhaust. The issue is, the clamp goes over the area of the exhaust where it starts to turn inward to then run parallel with the drive shaft. So the clamp is trying to clamp down the area that starts turning inward so the pipe pulls away from the clamp for a tiny bit. Outside of welding, does anyone have any idea how I could get this leak fix? I'm afraid it's scavenging air and causing issues with my secondary O2's and my AFR sensor. Thanks!

[Evansa22]

Originally Posted by 2023_ZL1-AUTO

Hi All,

So, I have a small exhaust leak at both drivers and passengers side CATs (1st CATs, secondary's were deleted), at the lamp joint clamp. So it's where the end of the CATs connect to the rest of the exhaust. The issue is, the clamp goes over the area of the exhaust where it starts to turn inward to then run parallel with the drive shaft. So the clamp is trying to clamp down the area that starts turning inward so the pipe pulls away from the clamp for a tiny bit. Outside of welding, does anyone have any idea how I could get this leak fix? I'm afraid it's scavenging air and causing issues with my secondary O2's and my AFR sensor. Thanks!

I had to use high temp exhaust sealant where my connection pipes met stock exhaust. Smearing on the outside of the male end and inside female side. Was causing my wideband to read lean. Seems to have fixed the issue so far, upside down but you get the idea. Your issue may be a little more difficult, not sure

[2023_ZL1-AUTO]

Evansa22 - Thank you ! Yeah I think I'm heading that direction... Ugh! I think I originally over tighten my clamps as well adding to the leak problem.