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Converting to Euro Airbox: Gains? Possible?
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01-11-2011, 09:55 AM | #199 |
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Just checked my order status online, noticed they ordered the wrong filter for me. Good thing the order was not shipped out yet, the correct filter is $47.99.
Lesson learned, give them part number (K&N E-2022), don't assume they know the correct part to go with the Euro box. |
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02-07-2011, 03:46 PM | #200 |
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Curious about doing this soon, I have muffler delete.. how would this combo go? I wonder if it would be too loud. I dont really care, I want it to maintain a solid sound like the BMW Perf vids on their website, either way I'm going to get this. Just wanted to hear what people have to say about the exhaust sound change, if any.
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03-31-2011, 04:14 PM | #202 | |
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Last edited by iZeem; 03-31-2011 at 04:23 PM.. |
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03-31-2011, 04:22 PM | #203 | |
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03-31-2011, 04:24 PM | #204 |
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I thinking about doing exactly what you did, get the Euro box and cheap China snorkel. Simply because the Euro spec Performance Intake is unavailable, plus the WAY cheaper cost helps. Although what part of the lid is missing?
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10-25-2011, 09:45 PM | #205 |
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Old bump, iZeem is that CF BMW perf. cover OEM or rep? Where can I get one.
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06-14-2012, 01:08 PM | #206 | |
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Thanks.. P.S- i m talking about euro version e90. Last edited by insane79; 06-14-2012 at 01:53 PM.. |
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06-14-2012, 01:40 PM | #207 |
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Yes the K&N filter is the same.
I replaced the K&N with Pipercross:
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06-14-2012, 01:51 PM | #208 |
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Not correct for US spec cars. The BMW performance intake re-uses half of the stock airbox. The filter is the same shape as the stock paper filter except the performance intake kit comes with a K&N oiled filter instead of a dry paper one. The charcoal filter is still used, so if you don't want it, you must cut it out.
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06-14-2012, 01:52 PM | #209 |
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06-14-2012, 03:18 PM | #210 |
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Beside K&N filter the BMW Performance intake has larger air intake. The performance gain is questionable. I don’t think it’s much.
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03-21-2018, 01:55 PM | #212 |
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looking at intakes for n52 - I like the Euro Spec but is it comparable to AFE intakes?
I'll be upgrading IM with 3 stage and flashing with bimmertech fwiw what's everyone using? thanks! |
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03-21-2018, 06:36 PM | #213 |
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I haven't had personal experience with the AFE intakes, but I just got the Eurobox w/ K&N cone filter. I'm coming from the stock box with an AFE dry filter & charcoal delete. Honestly I can't really tell much difference performance wise, it sounds marginally louder (barely) with the cover on. I ran it with the cover off for fun and it was LOUD, almost too loud and drone'y around 3k RPM and when you hit 5K+ it sounded like it was screaming.. not a good kind of loud volume, it's like a cheap ricer sound.. didn't like it so I put the cover back on.
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03-22-2018, 09:48 AM | #214 |
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Err'one here pretty much agrees that you can't go wrong with the OEM box (charcoal filter removed), OEM Eurobox (euro stock intake), or aFe sealed unit (stage 2 si). If you stay OEM, grab a silicone intake elbow from Rev Motoring, get a filter of your choice, and call it a day.
The BMW Performance Intakes (one for US intake, one for EURO intake) are good, as well, but very pricey! If you do go with the US BMW PI, you'll still need/want to remove the charcoal filter and get a silicone intake elbow.
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03-24-2018, 06:29 AM | #215 |
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that's really helpful - thank you!!
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03-26-2018, 10:30 AM | #216 | |
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Empirical Data and Proof of Concept
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The intake above, plus an auxiliary snorkel CAI similar to the E9X and E46 M3 designs, measured over 16 whp gain on the dyno. A closed intake system that sources O2 from outside the hot engine bay (like the PI and AFE boxes) make more power by decreasing IATs. The aux CAI makes more power by increasing O2 and further contributing to lower IATs, and the ECU attempts to maintain target AFR. This isn't debatable: http://iopscience.iop.org/article/10...3/1/012039/pdf
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