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Technical Topics B58 6-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications Any DP without a CEL or voiding warranty?

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      09-28-2022, 11:36 AM   #1
Rosario15
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Any DP without a CEL or voiding warranty?

Hey guys I have a M340i and I've been thinking about getting a dp but my main concern is the warranty, hence to the fact that I also bought the extended warranty from bmw.

If any of you have gotten a dp on your m340i without a tune and hasn't triggered a CEL please advise!!! :
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      09-28-2022, 11:47 AM   #2
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Quote:
Originally Posted by Rosario15 View Post
Hey guys I have a M340i and I've been thinking about getting a dp but my main concern is the warranty, hence to the fact that I also bought the extended warranty from bmw.

If any of you have gotten a dp on your m340i without a tune and hasn't triggered a CEL please advise!!! :
I got AA Down pipe. almost have 1k miles on it no CEL
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      10-02-2022, 05:50 PM   #3
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Quote:
Originally Posted by Rosario15 View Post
Hey guys I have a M340i and I've been thinking about getting a dp but my main concern is the warranty, hence to the fact that I also bought the extended warranty from bmw.

If any of you have gotten a dp on your m340i without a tune and hasn't triggered a CEL please advise!!! :
I have a 22 m340i with dinan Intake, turbo inlet pipe, AA catted Downpipe and MPE. No tune. No CEL. The MPE sounded tame and great on its own but once the AA downpipe was installed it really opened up the exhaust note. Sounds lovely.
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      10-02-2022, 09:47 PM   #4
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I have the AA catted downpipe. It’s been close to 10k miles and no check engine light. Even took it in for one of the free oil changes at the dealer and they never mentioned anything about it. I’m extremely happy with it!
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      10-03-2022, 08:50 AM   #5
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Active Autowerke is the only downpipe guaranteed not to trigger the check engine light. It's also the most proven choice.
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      10-05-2022, 06:43 AM   #6
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Active Autowerke is the way to go!
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      10-05-2022, 09:33 AM   #7
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Active Autowerke is the way to go!
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      10-05-2022, 11:19 AM   #8
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I've had my Active Autowerks catted downpipe since the spring and no CEL. Did get some great comments about the exhaust sound from the techs however when I brought it in to replace the windshield 😃
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      10-05-2022, 06:10 PM   #9
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Get the AA DP and call it a win!
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      10-07-2022, 09:39 AM   #10
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Any noticed increase in power with just the DP without a tune?
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      10-07-2022, 10:12 AM   #11
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Quote:
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Any noticed increase in power with just the DP without a tune?
~15 whp
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      10-07-2022, 01:56 PM   #12
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Quote:
Originally Posted by mike@x-ph.com View Post
Quote:
Originally Posted by Derekrpd View Post
Any noticed increase in power with just the DP without a tune?
~15 whp
Quote:
Originally Posted by mike@x-ph.com View Post
Quote:
Originally Posted by Derekrpd View Post
Any noticed increase in power with just the DP without a tune?
~15 whp
👍
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