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Old 06-30-2006, 03:29 AM   #1 (permalink)
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Which high flow cat to get...

Ok, looking for a high flow cat converter... But I'm not sure which one to get. I've searched internet, PO and HT but didn't get a good answer. My first choice was the 2,5" magnaflow one, but it got me thinking about the flow.

I have a H23 with Megan 4-2-1 header (2" collector)... The test-pipe I've got at the moment is 60mm and my Tanabe SHM is also 60mm... What converter will keep my flow optimal?

Magnaflow has a 2,25" to 2,5" hf cat-conv, which is my new first choice, but if you guys have a better advice, I'm all ears.

Thx
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Old 06-30-2006, 05:59 AM   #2 (permalink)
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60mm is 2.36"

I say go with the 2.5 hi-flow
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Old 06-30-2006, 09:22 AM   #3 (permalink)
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http://sms-products.com/Converters.html
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Old 07-01-2006, 02:20 PM   #4 (permalink)
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http://honda-tech.com/zerothread?id=1128725

Take a look at this link. Dave from SMSP did some flow testing on cats. Very interesting.
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