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Mercury Grand Marquis Exhaust, Mufflers & Tips

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Latest Customer Reviews

Magnaflow Catalytic Converters - 49 State Legal Reviews


Better than stock

Reviewed By Jason H (Carrollton, TX) Reviewed for a 1988 Mercury Grand Marquis —6/9/2009 8:42 PM

But not high flow. They allow a little better flow than the original converters, but not much more. They do sound better though. If I can get true duals on my car, they may work even better and the y pipe may be the main issue I'm having. Installation was a cake walk. Getting the old ones off was a pain, but these went on very easily. Would have been better if they matched up to the OE air injection without modification, but that's not a big deal.

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Flowmaster Universal Catalytic Converters - 49-State Legal Reviews


Flowmaster Cats

Reviewed By Jonathan G (KINGWOOD, TX) Reviewed for a 2005 Mercury Mountaineer —7/30/2014 8:52 PM

Replaced the OEM primary cats with the Flowmasters and got a high quality product for a very reasonable cost. Very happy with the end result.

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Magnaflow Performance Mufflers Reviews


Magnaflow Performance Muffle

Reviewed By Jesse G (East Lansing, MI) Reviewed for a 2008 Chevy Impala —12/11/2014 7:38 PM

Overall it was a good Moffle ,but I change it for Flowmaster dbx in my opinion it is better moffle the sound is so much better,like music to my ears ,if you want a good muffle Flowmaster DBX you will be very happy. I have the 3" inlet, 3" outlet and it is awesome!!!!!

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