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Old 06-06-2013, 10:14 AM   #246 (permalink)
ChrisSlicks
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Originally Posted by Mt Tam I am View Post
Cool beans. I would have thought a worse reading. How much actual HP do you gain removing the catalytic converters?
10-15hp over stock cats I would say.

For street driving the biggest issue is hiss and rasp at lower RPM's, but once it's revving the sound is very nice.

Exhaust leaks are a problem though, the only gasket you can use that works is the metal gasket from Z1 which is similar to OEM design but perhaps stronger.
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