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Old 10-26-2009, 08:40 PM   #1
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magnaflow direct fit catalytic converter

I wanted to put a magnaflow direct fit cat on my 06 tj. Is it going to make my exhaust much louder? or am i not going to notice it at all. i have a banks monster exhaust on my jeep.

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Old 10-26-2009, 09:20 PM   #2
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If you're doing so in hopes of more power due to a "low resistance" claim by some cats, it's not going to make any improvement. Besides, to generate the most low-end torque the engine must (!) work into some resistance. Removing all resistance from the output shaft and exhaust would reduce how much torque it produces. Also be wary that any cat/muffler you install will pass your state's smog requirements. Many such devices are not 50-state compliant so some states will not allow their use.

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Old 10-26-2009, 09:54 PM   #3
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It will change the sound of your exhaust...most claim that it will deepen your tone. Won't necessarily be louder, but will change the tone. Everyone I talked to felt it was a GOOD change. When I put one on my truck a couple years back, it sounded WAY different...just had a much more unique sound. But I also didn't feel it was actually LOUDER.

And I agree with Jerry above...as far as seeing any gains from it, when I installed the one on my truck, I honestly didn't notice any big gains on the "butt dyno"...I did see a very noticeable increase in gas mileage, but I also changed plugs, wires, dist. cap/rotor, O2 sensors, oil and gear oils all at the same time...so it could have been attributed to ANY of those things.
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Old 10-26-2009, 10:06 PM   #4
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thanks!!
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Old 10-26-2009, 10:17 PM   #5
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Quote:
Originally Posted by laxin15 View Post
thanks!!
IMO...save yourself some money and buy the universal fit. Then just have an exhaust shop cut your old one out and weld the new one in. If you get a mom and pop place to do it for ya, it'll probably be fairly cheap.
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Old 10-28-2009, 08:23 AM   #6
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cat

Or if you dont have to worry about smog Inspections, why even waste the money/time, get rid of it and straight pipe it.. From what i hear, you wont loose anything by not having a cat...

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