91 ls400 exhaust question

[mercedes84black]

My car started running hot, everything checked out OK. I put my hand over the exhaust in the rear of the car and could barely feel anything. I ordered 2 new cats but when I removed the old ones they appeared to be fine. Could my 4 mufflers be the culprit or there looks like a resonator of some sort before the mufflers where all the pipes come together could be the issue

[TrevC]

Hi

If the Mufflers were blocked it would severely restrict the power from the engine but it could also lead to overheating also.

Let us know what you find

Cheers  Trevor