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Magnaflow HP Gains

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Old 05-18-2005, 06:32 PM
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Default Magnaflow HP Gains
I'm adding a magnaflow exhaust to my 99 B4C. What I was wondering was does it just make the car sound meaner, or does it also add H.P? I'm installing MAC headers, and ORY, and know they cause HP (don't know how much there either.) Can anyone help?
Thanks a new LS1 owner
Michael
99 B4C Pewter
SLP LID
MAC Headers
ORY
Magnaflow Cat back
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Old 05-18-2005, 06:52 PM
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On the magnaflow website under the dyno section, they have a dyno showing gains of 14/18 on a stock ss.
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Old 05-18-2005, 06:58 PM
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I gained 19rwhp on my bone stock '98 A4 TA.
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Old 05-18-2005, 07:11 PM
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definetely got at least 15. she was a whole new car after openin up the exhaust. cant wait for LT's

Brad
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Old 05-19-2005, 07:14 PM
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Cool this is awesome info! If Im getting 15-18 HP gains, how much does the headers, ORY, and lid give ya??
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Old 05-19-2005, 07:40 PM
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Headers(if LT's), off-road Y and lid would probably give you ABOUT another 30rwhp.
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