Thread: High flow cats
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Old 03-23-2011, 02:34 PM   #9 (permalink)
christian370z
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I have no dyno sheet, but the stock cats are the single largest restriction in the entire exhaust system so I don't understand how that is possible. I installed Berk HFCs in my car with a Tanabe Y pipe and the stock exhaust and put down 309rwhp which is the same or even a bit more power than what other Zs with CBEs put down on the same dyno.

After installing my FI CBE, I felt an additional bump in power and will be going on the same dyno to see what I gained soon.
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