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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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PaceSetter Direct-Fit Catalytic Converters - 49 State Legal Reviews


Great product

Reviewed By Scott K (SAUGERTIES, NY) Reviewed for a 2006 Nissan Murano —10/6/2017 9:56 AM

For a great price

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Flowmaster Universal Catalytic Converters - 49-State Legal Reviews


1985 Delta 88 cat replace

Reviewed By Charlene J (Faribault, MN) Reviewed for a 1985 Oldsmobile 88 —8/25/2017 8:41 PM

I purchased a Flowmaster cat converter to stop a check engine light from coming on. I also wanted some extra exht noise even though I only have a 231 V6. Mission accomplished on both.

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Year Range For Mercury Grand Marquis Catalytic Converters