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


Just right

Reviewed By Marlon G (MEDFORD, OR) Reviewed for a 2000 Chevy Camaro —6/17/2015 8:13 PM

I had a cat that was giving a check engine for low performance, replaced with flowmaster caTs no more check engine. They do what they say, next I'll be putting on flowmaster mufflers

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


Now I am good for many more miles to come

Reviewed By don m (clarkridge, AR) Reviewed for a 2005 Ford Econoline —6/6/2015 10:30 PM

I have a vehicle with near 200,000 and still in most excellent condition. I maintain it and that helps. Anyway I replaced the whole of the exhaust system and plan on keeping the vehicle. If it needs a new engine or any other part,in the future, I will replace it so this purchase is a investment with me. The quality of this product is 5 Star with me.

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Year Range For Mercury Grand Marquis Catalytic Converters