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Old August 28th, 2008, 08:46 AM   1 links from elsewhere to this Post. Click to view. #1
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no catalytic converter


I have no catalytic converter on my car. I do have a registration sticker, got it legally wink wink. But eventually I may get one, for future inspections or whatever. Are they expensive, easy to hook up, and will it hurt or help performance in having one? Im guesisng it would hinder performance but not much.
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Old August 28th, 2008, 08:52 AM   #2
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I got a Magnaflow 2.5 stainless H pipe with high flow cats for about $300 a year ago. I doubt you would see any difference in power.
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Old August 28th, 2008, 10:54 AM   #3
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Removing the Cats are usually good for a +10-15 hp gain.

So, if you put them back on, you would lose that amount.
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Old August 28th, 2008, 10:56 AM   #4
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Originally Posted by Big Daddy View Post
Removing the Cats are usually good for a +10-15 hp gain.

So, if you put them back on, you would lose that amount.
I seriously doubt that. Maybe 5. High flow cats hardly inhibit exhaust flow.
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Old August 28th, 2008, 11:24 AM   #5
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I went with bbk x pipe catted was $400 something. I would watch out if your going to lower your car tho...
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Old August 28th, 2008, 11:45 AM   #6
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wats the differnce between the stock cats and hi-flow cats?
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Old August 28th, 2008, 12:01 PM   #7
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about 7-8 hp
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Old August 28th, 2008, 12:20 PM   #8
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Originally Posted by Haggis13 View Post
I seriously doubt that. Maybe 5. High flow cats hardly inhibit exhaust flow.

+1
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Old August 28th, 2008, 12:26 PM   #9
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they are pricey but shouldnt hurt performance much wit a hi flow set.
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Old August 28th, 2008, 03:27 PM   #10
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what's the power difference in high flow cats and no cats at all?
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Old August 28th, 2008, 03:49 PM   #11
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Originally Posted by BWAL09 View Post
what's the power difference in high flow cats and no cats at all?
Not much - Maybe 5 hp.
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Old August 28th, 2008, 04:06 PM   #12
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what about the sound difference?
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Old August 28th, 2008, 04:14 PM   #13
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Originally Posted by BWAL09 View Post
what about the sound difference?
THAT is the biggest difference. No cats are definately louder. The only drawback is the stink of your exhaust. A good X or H pipe with high flow cats muffles the sound a bit, but can still sound awesome.
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Old August 28th, 2008, 05:04 PM   #14
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i got tired if swapping my off road h pipe for my stock one every 2 years for inspection so i bought a bbk hi flow h pipe with cats and i ran the same et's amd mph at the track in my 12 sec 5.0 as i did with the off road h pipe . now the stoch h pipe definately hurts performance , get rid of it asap
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Old August 29th, 2008, 03:24 AM   #15
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Originally Posted by dr.gonzo View Post
I went with bbk x pipe catted was $400 something. I would watch out if your going to lower your car tho...
car already sits real low
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Old August 29th, 2008, 03:26 AM   #16
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Originally Posted by Haggis13 View Post
THAT is the biggest difference. No cats are definately louder. The only drawback is the stink of your exhaust. A good X or H pipe with high flow cats muffles the sound a bit, but can still sound awesome.

Yup my car is REAL loud and it does smell but I only notice it when I fire it up initially in the garage, even when I pull into the garage at the end of the day and turn the car off I dont smell hardly anything.
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