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Old 04-17-2005, 06:26 AM   #1
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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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