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Mercury Grand Marquis Catalytic Converters

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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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Eastern Catalytic Direct-fit Catalytic Converters - 49-State Legal Reviews


perfect fit

Reviewed By Terence M (Ewa Beach, HI) Reviewed for a 2007 Nissan Altima —7/25/2016 10:20 PM

car got really loud. problem solved with a new exhaust manifold. thanks

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Eastern Catalytic Universal Catalytic Converters - 49-State Legal Reviews


Good and as adverstise.

Reviewed By Neil D (NEWARK, DE) —7/1/2016 5:48 AM

It arrive early and it is what i expected to be and i find that a great customer service company.thanks.

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Year Range For Mercury Grand Marquis Catalytic Converters