4.0 exhaust

jeepattitude

New member
1040330

What could i put on my 4.0 to make it sound good? I was thinkin of converting it into dual exhaust. Any sugestions?
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1040331

You could do what I did, rack your muffler on a stump you thought you could clear. Mine sounds pretty good now but I don't think thats what you're looking for. A lot of Jeeps around here have flowmasters and they even make the 4 bangers sound pretty good.
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1040332

Do you know exactly what flowmaster muffler they have? Ill go onto the website then and look up the price of it. I just might put one on my jeep.
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1040352

Im goin to go on thier web-site and check out that muffler. Does anyone know how much they cost? Also do you know if it is the original flow or the delta flow?

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So powerful they have to keep them behind bars!!!
 
1040418

i had a flowmaster on my 88 4.0l xj. it sounded good but ended up getting clogged when my catalytic went south. i installed a dynomax that i picked up at discount auto parts and the dynomax seems to flow better than the flowmaster did.
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1040572

The Flowmaster is a chamber design and the dynomax is a insolated straight through design. It really depends on what type of sould you are looking for. The flowmaster should run you around 95-125. As for the dynomax, I'm not sure of, they are usually less expensive that the Flowmaster though. I have always ran Flowmaster on my vehicles. I ran two 2-2chamber flows on my dual exaust camaro, then 2-3chambers on my 72 nova, followed by 2-2cahmbers on my 85 K5 blazer (holy crap was that thing load), and will put some 3-chambers on my 88mustang gt that I'm currently building.



I have 1-2chamber on my (V6) 96 GMC daily driver, and it is VERY loud. I plan on running a 3-chamber on my 93 cherokee. As soon as I get the cooling system in shape I'll get a price on the muffler and install. The Dynomax sound very good with cars that have high flow cats or no cats at all. They need a less restricted system to sound throaty, otherwise they kind sound like a louder turbo muffler.[addsig]
 

1040587

I have the 40 series Flowmasters on my 94 ZJ. I will never go with anything else, they're relatively inexpensive and they give you that deep, throaty, big block sound.[addsig]
 
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