Diference between 100 cell and 200 cell cat ??
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That is a difficult question to answer without knowing what your goals/requirements are.
100 cell cats will be less restrictive then the 200 - I cannot speak directly on the 997, but the less restrictive the cat, the more you will likely get smells in the vehicle (again, i am speaking from my experience on other cars i have owned/modified and from what i saw on my father's 01 Turbo)
What type of power are you shooting for? Unless you are making huge horsepower and are looking to swap turbos and other modifications - i would say the 200 cats would likely more than suit your requirements.
As for smog - i have no idea, i know you Cali people have more to worry about then the rest of us. My guess, would be that the 100 would give you more issues with smog, but again - i don't know.
100 cell cats will be less restrictive then the 200 - I cannot speak directly on the 997, but the less restrictive the cat, the more you will likely get smells in the vehicle (again, i am speaking from my experience on other cars i have owned/modified and from what i saw on my father's 01 Turbo)
What type of power are you shooting for? Unless you are making huge horsepower and are looking to swap turbos and other modifications - i would say the 200 cats would likely more than suit your requirements.
As for smog - i have no idea, i know you Cali people have more to worry about then the rest of us. My guess, would be that the 100 would give you more issues with smog, but again - i don't know.
That is a difficult question to answer without knowing what your goals/requirements are. 100 cell cats will be less restrictive then the 200 - I cannot speak directly on the 997, but the less restrictive the cat, the more you will likely get smells in the vehicle (again, i am speaking from my experience on other cars i have owned/modified and from what i saw on my father's 01 Turbo) What type of power are you shooting for? Unless you are making huge horsepower and are looking to swap turbos and other modifications - i would say the 200 cats would likely more than suit your requirements. As for smog - i have no idea, i know you Cali people have more to worry about then the rest of us. My guess, would be that the 100 would give you more issues with smog, but again - i don't know.
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From: Austin
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See Stef's write-up on cats here: http://www.europipe.be/exhausts.html
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