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Pontiac Grand Prix Catalytic Converters

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Latest Customer Reviews

Magnaflow Catalytic Converters - 49 State Legal Reviews

Half the price of factory, twice the value and performance.

Reviewed By Michelle M (Mayer, MN) Reviewed for a 2004 Pontiac Grand Prix —10/23/2013 8:27 AM

My car has 200,000 miles and my old cat was in need of replacement. Was getting bad mileage and wouldn't even shift past 4k. A stock factory cat for my car was $677 from the dealership- I found my magnaflow for less than half the price. It only took the shop about 45 minutes total to install the direct-fit cat(no problems). My car now runs better than it ever did, no check engine light, my mileage is up, it revs up to redline and I can definitely feel the difference in response and power.

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

Catalytic Converter

Reviewed By STAN S (Wausau, WI) Reviewed for a 2004 Pontiac Grand Prix —3/19/2011 9:35 AM

The fit was great it bolted right up.

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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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Year Range For Pontiac Grand Prix Catalytic Converters