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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > i have a question



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      06-15-2009, 12:51 AM   #1
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i have a question

i just bought a highflow exhaust im looking to get downpipes and an intake how much power do you think those alone will add? im not interested in ecu modifications yet anyways haha but you guys think i could get a significant amount of power from those three? please let me know thanks
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      06-15-2009, 01:48 AM   #2
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Search. There are dynos. It also depends on your exhaust. Cat back, axle back, etc. The different DPs have shown different amounts of power gains. Nothing compared to any of the good tunes.
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      06-15-2009, 02:03 AM   #3
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i bought the active autowerke downpipe back exhaust and suggestions on the intake and catted downpipes?
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      06-15-2009, 10:16 AM   #4
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so search for the AA gains like suggested in the other post
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