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BMW 3-Series (E90 E92) Forum
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Passing smog in the bay area, FBO!
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01-09-2019, 11:35 AM | #28 |
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02-25-2019, 10:42 PM | #30 |
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I have a N51 engine and just recently got an AA Stage 2 tune. I was wondering for those with the N51/N52 engine, what kind of mods can you do but still pass smog?
My understanding is as long as you don't do anything with the headers and O2 sensor, everything on the intake side should be fine right? |
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02-10-2021, 03:20 PM | #38 | |
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Quote:
https://www.e90post.com/forums/showthread.php?t=1253637
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Bigger is always better! M4
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04-16-2021, 04:49 PM | #41 | |
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04-29-2021, 09:47 PM | #43 | |
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04-30-2021, 11:08 AM | #44 |
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Phone number sent! Let me know how it goes for you. I believe he can do it 100% remote BTW.
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2013 335is Mineral/Coral - DR 6466 - DR Mani - PI - Motiv FF - Dodson Clutches - OEM CF Roof - M3 GTS DCT/LSD/DS/Halfshafts/Suspension/Subframe/Brakes/Chassis Bracing F+R - DEFIV Diff Brace - 437M/R888R
2015 X5 35D - 1990 535i [RIP] - 1992 318i Convertible - 2002 540i/6 |
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