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Old 01-09-2012, 01:42 PM   #1
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High flow cats, plz help.

I need new catalytic converters on my car and my first thought was american muscle. On tht site, they sell a pair of pypes high flow cats. My car has 4 converters on it stock ( its a 02 3.8L). Question is, am I supposed to install one on each side and call it a day or do I have to buy 2 sets and put 2 on each side. Anyone do anything similar to this before?
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Old 01-09-2012, 01:44 PM   #2
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Re: High flow cats, plz help.

Depends on your emissions laws, look into this first: IF you can get away with it
All you need is one on each side. Be ready to wake up your exhaust you'll love them.
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Old 01-09-2012, 01:54 PM   #3
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Quote:
Originally Posted by SenorMike
Depends on your emissions laws, look into this first: IF you can get away with it
All you need is one on each side. Be ready to wake up your exhaust you'll love them.
But will it do any damage to my engine? And how much louder wld the exhaust be out of curiosity lol. Currently i have a single flowmaster super 44 turn down and its got a nice tone to it, wouldnt want to mess that up.
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Old 01-09-2012, 02:03 PM   #4
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Re: High flow cats, plz help.

Oh it'll make the tone better and wont be to loud, I have long tubes and no cats to dual 40s and cammed and its not loud enough for me :p

But it will probably end up changing your AFR is the only problem. Be best if you have a tuner to turn of rear O2's
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Old 01-09-2012, 02:18 PM   #5
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Quote:
Originally Posted by SenorMike
Oh it'll make the tone better and wont be to loud, I have long tubes and no cats to dual 40s and cammed and its not loud enough for me :p

But it will probably end up changing your AFR is the only problem. Be best if you have a tuner to turn of rear O2's
But it wont be damaging my engine, correct?
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Old 01-09-2012, 04:38 PM   #6
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Re: High flow cats, plz help.

bad AFR can.

But shouldn't cause engine problems. Just with those, usually I see running rich codes w/ exhaust issues. So it puts a bit of extra fuel in. Not enough fuel is the bigger problem!

Im not saying you should do it w/o a tune.Just saying, you 'can'
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Old 01-09-2012, 07:44 PM   #7
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Wht exactly is AFR?
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Old 01-09-2012, 07:52 PM   #8
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Quote:
Originally Posted by Nog51
Wht exactly is AFR?
Air/fuel ratio
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Old 01-09-2012, 09:04 PM   #9
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Re: High flow cats, plz help.

yup, not enough fuel means lean
to much fuel means rich

Lean is really really bad. Neither is good. But id rather be a little rich than lean.
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Old 01-09-2012, 10:43 PM   #10
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Ahh kk
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