Quote:
Originally Posted by sethhatfield
It's the catalytic converters are clogged and broken apart inside their shells. I had the same problem and had mine replaced with a pair of universals for $364 and I got all the power back. I wouldn't rev past 4000 rpm when flooring it. The muffler guy cut them off and chunks of crap fell out of them.
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Thanks for your input.
Did you have the rattle like the one in my video on page 2?
Do you have a 4.6 too?
What made you suspect the cats rather than coils etc?
Many thanks for your help