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Old 11-01-2013, 10:19 AM
suginami suginami is offline
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Join Date: Dec 2001
Location: Southern California, U.S.A.
Posts: 8,538
Quote:
Originally Posted by EricSilver View Post
UPDATE 2
Over the past 6 months, both secondary cats began rattling. My original intent was to have them cut out and have aftermarket replacements or straight pipe installed.

Because an empty converter housing is, for all intents and purposes, a straight pipe, earlier this week my tech dropped the exhaust, gutted the secondary cats, and solved the problem (and improved performance).

I should add that the sound of that V8 with no mufflers is simply wonderful; don’t know why MB chose to tune it to be so quiet.
Man, this wouldn't fly in California.
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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".
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