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Is there any kind of quiet yet high efficiency exhaust upgrade for my 4.6 Bird? Not looking for loud stuff because I don't want to disturb my neighbor or myself. Doesn't have to be super racy stuff but a decent exhaust with less restriction. Any suggestion?
 

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Trubenz mandrel bent exhaust, Magnaflow high flow cats, and a nice set of quiet mufflers in the back.

Mufflers, I'm not too sure on myself.

RwP
 

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1994 XR7 , 46 most every option. 66.000 miles. rustfree, from washington state.
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anyone use the dynomax catback ?
 

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1997 Thunderbird LX
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I had it on mine, I now have the Tru-Benz catback now with a Magnaflow resonator and the Dynomax mufflers (new) from the catback kit.

Joe
 

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1994 XR7 , 46 most every option. 66.000 miles. rustfree, from washington state.
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Stock late model Mustang GT mufflers. Stainless steel, quiet but not silent, low restriction they tuck right up and you can probably find them for $50/pair.
what years are you talking about?anyone try the truebendz with walker quiet flow ss mufflers? what is involved in
fitting the tbz pipes. do you cut off at the resonator and install the h pipe. just a plug and play so to speak ? 2.25" big enuff ?. thank you for any info. power gain or mileage increase?
 

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I wouldn't go less than 2.5". More flow is better, and I'd stay away from the Walker stuff. Unless it's changed, they make cheap low quality muffs. If you want to keep cost down, maybe thrush would be a bit better. Dynomax after that. If you want the best quality Magnaflow is right up there, as is Borla. I personally like Flowmaster, but everyone will say they cost you power. Corsa is my favorite, but they don't sell mufflers separate from their car back kits. Of course they don't have one for our cars.
 

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Personally, I would stick with dual 2.25" with a stock 94. It still flows quite a bit more than the stock system. Larger pipes = louder.

And I would count on a zero percent gain in gas mileage. Although it seems like it would make the car more fuel efficient, those kind of things rarely pan out in gas mileage. Maybe on an old carbureted car it would.

Al
 
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1994 XR7 , 46 most every option. 66.000 miles. rustfree, from washington state.
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no listing anymore for dynomax catback unless i missed it on rock auto. they were also listing walker
quiet floww ss mufflers and they disappeared. maybe im getting senile. i do want stock looking mufflers, not universal.
 
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