2002 Eldorado ETC
I’ve been hearing some rattling from underneath especially when the engine throttles down. The local muffler expert says it’s the catalytic converter rattling. That would’ve been my guess but what do you experts think? If we agree, it’s the cat, what is the general consensus on a replacement make and model. Summit Racing has some high flow cats. Rock Auto has one that’s a little more expensive. Has someone replaced their cat and what your advice?