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Old 04-17-2005, 05:26 AM   #1
j-dane
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Join Date: Jul 2004
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Location: California (Woodland Hills)
What I Drive: 2004 Pitch Black ZX3 2.3L Duratec

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Performance comparison high flow or resonator?

I'm planning on putting a high flow cat w/ my headers-exhaust set up.

1. What's a good brand for high flow cat?

2. Also, I am running a 2.5 inch exhaust w/ Cosworth header, and will it be better to run a 3inch cat or 2.5" cat?

3. Which is more restrictive a resonator or high flow?

4. Which one will make the car quieter?


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