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Old 02-04-2009, 11:52 PM   #1
because race car
 
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header mod

I was looking at the end of my header on my svtf and it looked like it went straight into a resonator? If it is a resonator it seems like it would be restrictive of the header/exhaust. Is there any consequences of removing it? Has anyone done this? What does it do to the sound?


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Old 02-05-2009, 12:01 AM   #2
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That is your catalytic converter. And yes The stock cat is restrictive, but since you and I don't have to test for emissions an off road pipe can be used... C-F-M has them in stock, check them out, there is also a link on the product page to a dyno chart...clicky...
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Old 02-05-2009, 12:01 AM   #3
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i do believe the part your talking about is the catalytic converter??? and if you want to remove it you can buy an off road pipe

http://focus.c-f-m.com/index.asp?Pag...S&Category=297
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Old 02-05-2009, 12:02 AM   #4
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Same time lol same link...
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Old 02-05-2009, 12:04 AM   #5
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damn i gotta be a few seconds quicker next time
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Old 02-05-2009, 12:42 AM   #6
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Old 02-05-2009, 09:38 AM   #7
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I thought the cat was after closer to the muffler. The off-road pipe sounds sweet but I might b moving to AZ at the end of the summer and it's not emissions legal. But if I end up staying in ID 7 hp!!!
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Old 02-05-2009, 01:11 PM   #8
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Quote:
Originally Posted by djo90 View Post
I thought the cat was after closer to the muffler. The off-road pipe sounds sweet but I might b moving to AZ at the end of the summer and it's not emissions legal. But if I end up staying in ID 7 hp!!!
An off road pipe is not emissions legal anywhere, hence the name "off road".
It is not a state to state law it is a federal emissions law. The same folks who say install an off road pipe are also the ones who whine when they get a ticket for no cat.
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Old 02-05-2009, 02:42 PM   #9
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Quote:
Originally Posted by djo90 View Post
I thought the cat was after closer to the muffler. The off-road pipe sounds sweet but I might b moving to AZ at the end of the summer and it's not emissions legal. But if I end up staying in ID 7 hp!!!
You can also get a highflow cat that will produce similar gains and should keep your car emissions legal.
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Old 02-05-2009, 02:49 PM   #10
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Yes it is of course federally illegal. I read about it countless times when I was digging through old threads about ORPs last night. For some people It is the right direction to go, especially when you live in an area where there are no emission tests, where the police wont bother, and If they do you will get a fix it ticket and solving that is as easy as swapping your stock cat back in... But hey thats just my opinion.
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