Just finished installing a flowmaster 52557 muffler on my 2000 4.7 Durango, pretty happy about the install and sound. My only rant is 1700-1800 RPM on highway there is an annoying wah-wah-wah sound in the interior, above and below that RPM I love it. Didn't see any MPG change either just came back from 1100 mile trip.
Cut the old muffler as close as possible to case on inlet side. Tape is 3/4 in wide.
Opened up outlet of case and cut pipe, so I had the right length.
Test fit
Happy with fit, tacked tail pipe to muffler and welded up outside
Added this to attach rear hanger bracket
Installing muffler and tailpipe start by laying it upside down, d jacked up and rear end hanging.
Start like this
End up like this
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Last edited by calmc; 09-05-2009 at 01:17 AM.
Reason: added more pics
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Thanks Hydra and good catch on the seal, did that the next day didn't want to wake everyone up with the impact gun and compressor that night..nice and dry now.
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2000 4.7 Durango
K&N filter, Flowmaster muffler
Waiting on for more upgrades.
Flowmaster 52557 muffler install pics
for more upgrades.
