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Mercury Grand Marquis Magnaflow Exhaust, Mufflers & Tips

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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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Magnaflow Performance Mufflers Reviews


Magnaflow Performance Muffle

Reviewed By Jesse G (East Lansing, MI) Reviewed for a 2008 Chevy Impala —12/11/2014 7:38 PM

Overall it was a good Moffle ,but I change it for Flowmaster dbx in my opinion it is better moffle the sound is so much better,like music to my ears ,if you want a good muffle Flowmaster DBX you will be very happy. I have the 3" inlet, 3" outlet and it is awesome!!!!!

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Magnaflow Exhaust Systems Reviews


Truck has more go now with MagnaFlow!

Reviewed By Keith B (Las Vegas, NV) —12/2/2014 8:12 PM

This was pure excitement from the time I opened the box. It is very well made and bad arse looking. I put it on my 2013 F150 3.7L V6. My truck is the stock XL, I wanted to put my own upgrades on it. MagnaFlow was first, it improved horsepower and torque. Also better MPG about 2 gals, and WOW THE SOUND. WOW THE SOUND... yes I said it twice. (I have two boys 7 & 9, the vibration puts them to sleep in the back seats BONUS!)

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