flowmaster American thunder stainless - JeepForum.com
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post #1 of 3 Old 06-20-2013, 02:10 PM Thread Starter
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2009 WK 
Join Date: Sep 2007
Location: New York ADKS
Posts: 170
flowmaster American thunder stainless

What up Jeep folk,
What's the feedback on this system? I've read other posts and seems peoplw like Magna flow? Looking for something modest at idle and cruising interstate. But also want something that let's everybody know I'm around while driving through town. Any advice would be great. Moved up a caliber n picked up an 09 Overland and want to hear it sing.
Thanks for any info.

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post #2 of 3 Old 06-21-2013, 02:20 AM
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2006 WK 
Join Date: Jan 2013
Location: Wapakoneta
Posts: 182
I had that system with 4 in resonator tips on my 3.8 camaro and REALLY liked it. Most people didn't know it was a v6, not motorheads obviously, but still. Don't know about a jeep tho, don't think huge chrome tips would look great on a jeep. And I think they helped the sound a bit. I have the 4.7 and a 40 series on it, and I love it. Sounds great at idle, gets louder in the midrange ( which happens to be where I usually keep rpm under normal acceleration)
And not too bad at highway speeds.

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Super slowmo build, 2006 grand cherokee limited 4.7, flowmaster 40, k&n cai, superchips, shorty antennae, 08 Jk Sahara takeoffs w/stock duelers
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post #3 of 3 Old 06-21-2013, 09:14 AM
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Do your research on the exhaust system plus MDS. It might spund funny with mds on.

SOLD 2008 WK 4.7 V8
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