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how much extra HP i can gain by upgrading the factory downpipe on my fd?

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Old 09-20-10, 03:26 PM
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amemiya7
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how much extra HP i can gain by upgrading the factory downpipe on my fd?
i am thinking to change my factory downpipe on my fd?
does it add any HP or no?
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Old 09-20-10, 03:31 PM
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For you, Zero, you have those heavy *** mazdaspeed wheels
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Old 09-20-10, 03:41 PM
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lmao. That's why you gotta sell them to Bwek .
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Old 09-21-10, 10:45 AM
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You have a jdm car so you don't have the pre cat. I do not think you would notice any difference. If you decide to upgrade the entire exhaust you might gain 1hp
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Old 09-21-10, 09:58 PM
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Originally Posted by Bwek
For you, Zero, you have those heavy *** mazdaspeed wheels
actually they are pretty light .... i know they look heavy but they arenot
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Old 09-21-10, 10:04 PM
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I know lol im trolling you will you be at Kc Tmw night? If i get my cars throttle to unstick ill be there
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Old 09-22-10, 05:12 PM
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Originally Posted by Bwek
I know lol im trolling you will you be at Kc Tmw night? If i get my cars throttle to unstick ill be there
yup
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Old 09-23-10, 12:30 PM
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Originally Posted by anees
i am thinking to change my factory downpipe on my fd?
does it add any HP or no?
Unless the existing part is extremely restrictive, you would not be able to measure any difference.
I'm not sure which model you have, but on FD's, we have seen very high temperatures at the air filters (35-40 deg C) while running on the dyno, even with the hood open and fans running. This indicates that you could achieve some real gains (3-5%) by getting ambient air to the filters.
-Jo
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