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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 10-18-2012, 11:50 AM   #1
cristianff
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Rear performance exhaust vs dashboard

Hello everyone.

I have a technical doubt.

Recently I bought this performance headers:
ebay.com/itm/370664749691?item=370664749691&viewitem=&sspagenam e=ADME:X:RTQ:MOTORS:1123&vxp=mtr

When I replace the origal header, I will get some check engine lights in the dashboard?

Thanks
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Old 10-18-2012, 02:42 PM   #2
sedanpowersc
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Quote:
Originally Posted by cristianff View Post
Hello everyone.

I have a technical doubt.

Recently I bought this performance headers:
ebay.com/itm/370664749691?item=370664749691&viewitem=&sspagenam e=ADME:X:RTQ:MOTORS:1123&vxp=mtr

When I replace the origal header, I will get some check engine lights in the dashboard?

Thanks
Yes you will because you will no longer have catalytic converters, the Active Autowerke tune will take the CEL light away but other than that is a waste of money.
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Old 10-18-2012, 05:00 PM   #3
cristianff
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What do you think about de-fouler "technology"?
http://www.modernperformance.com/pro...aliber_exhaust
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Old 10-21-2012, 05:30 PM   #4
DarkJoker
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http://http://forum.e46fanatics.com/...d.php?t=713645

go here and be filled with knowledge
its pretty much the only way to avoid a check engine light with headers
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