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2003 Jeep Grand Cherokee Performance Mufflers

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Latest Customer Reviews

Flowmaster Super 40 Series Mufflers Reviews

Good Bang For The Buck

Reviewed By Diego G (El Paso, TX) Reviewed for a 2003 Jeep Grand Cherokee —7/25/2006 4:08 PM

AAfter having had the 50 suv series with 3' piping on my Jeep WJ..I decided it was time to go louder and I did exactly that.. The Super 40 at first wasn't much louder, but let it burn in and you can really hear it bring your car to life..Loud enough for anyone to get noticed.. Really liked it

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Flowmaster Super 44 Series Mufflers Reviews


Reviewed By Donald K (North Providence, RI) Reviewed for a 2010 Jeep Grand Cherokee —10/21/2014 7:50 AM

Awesome muffler! What a difference!

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Flowmaster Universal Resonators Reviews

No more drone!

Reviewed By Dan L (CHELMSFORD, MA) Reviewed for a 2010 Jeep Grand Cherokee —7/8/2014 9:27 AM

I installed the Cat Back system - American Thunder a few weeks back. I was fun scaring the neighbors with the sound of the 5.7 liter but the drone between 1700 - 2000 rpms finally got to me. The resonator killed the drone and muted the cat back to some degree. Although Auto Anything claimed this to be a "button up" installation, it really isn't. You'll need to cut into the existing system and I recommend having it welded by a reputable shop. Nice mellow rumble now.

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