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Intake+exhaust = How Much Faster?

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Old Jun 6, 2008 | 11:55 PM
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Default Intake+exhaust = How Much Faster?
I have a IS250 and I was wondering if I got Exhaust and Intake, how much faster would it make the slow IS250? If anyone has experience or know any of these information I would appreciate it.
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Old Jun 7, 2008 | 12:29 AM
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I only have tanabe exhaust..and I havent done any dynos or feel any increase in power.. my wild guess would be <5hp? and an intake would be <5hp too?

so total is at most 10 hp?
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Old Jun 7, 2008 | 03:46 PM
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Yeah.... intake will be 0-5 hp depending on conditions (arguably negative gain for an open-filament intake from a stop)

Exhaust will be maybe 5-7 hp for any street-legal axle-back... maybe a couple more (on a 250) for one of the illegal full exhausts that delete the 2nd cats
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Old Jun 7, 2008 | 03:57 PM
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add headers and you can get around +30~ hp gains
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Old Jun 7, 2008 | 04:44 PM
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This is what you need!! Mazzuri super headers FTW!!
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Old Jun 7, 2008 | 04:47 PM
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I don't think intake/exhaust for our cars would make much of a difference..I'm assuming about 10hp max is what i'm getting with intake + exhaust
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Old Jun 7, 2008 | 05:21 PM
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for the price of an intake and exhaust.. get the mazzuri headers instead!
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Old Jun 10, 2008 | 07:06 PM
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Mazzuri headers=
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