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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

Good fit (not great)...lets see how durable over time...

Reviewed By jason e (Wharton, NJ) Reviewed for a 2008 Subaru Impreza —10/7/2015 10:29 AM

direct fit converter fit good. my only complaint is the front O2 sensor isn't angled out enough towards the front resulting in a very tight fit with very little clearance to the timing belt cover. also the O2 bungs for the front O2 sensor for early and late model fitment are welded to close together resulted in trimming the heat sheild for the O2 sensor to be able to screw in to the exhaust. The only thing left is to see is how durable the SS pipes & welds hold up.

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

Volvo catalyst

Reviewed By Kevin M (Milton, MA) Reviewed for a 2002 Volvo S80 —9/7/2015 7:12 AM

Catalyst arrived very quickly however packaging was beaten to pieces. Package included all gaskets and heat shield securing bolts (unexpected !). Overall very pleased with the speed of delivery and quality of product but would like sturdier packaging.

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Year Range For Mercury Grand Marquis Catalytic Converters