06-17-2022, 09:51 AM | #4 |
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They’re on my short list of upgrades once my car gets here.
From what I understand, these, high flow air filter replacements and taking out the charcoal filters will add some sound and a noticeable bump in performance. Nothing crazy but noticeable. |
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06-17-2022, 11:35 AM | #5 | |
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I have this setup And for the money it is good upgrade |
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06-17-2022, 12:31 PM | #6 |
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06-17-2022, 01:33 PM | #7 |
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I have these as well and did not see any improvement in anything.
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06-17-2022, 04:10 PM | #9 |
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Yeah. Those ones actually helped with the whooosh sound a little.
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06-17-2022, 04:48 PM | #10 |
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06-17-2022, 05:18 PM | #11 |
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Yeah typically charge tubes will also help with 60-130 times with a tune and exhaust... Just better flow over all.
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06-17-2022, 06:08 PM | #13 |
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Racechip and sec cat delete only. I haven't driven it much since getting installed so maybe there's a difference but I dunno 🤷*♂️
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RETIRED: 2021 F93, 2021 F96,2019 F82 M4C, 2018 F80 M3C, 2018 F86 X6M- black fire, 2015 F13 M6, 2015 F10 M5, 2012 F10 550i M-Sport, 2012 F13 650i X-Drive, 2009 E60 535i M-Sport, 2007 E60 530i |
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06-17-2022, 08:14 PM | #14 |
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06-17-2022, 08:23 PM | #15 | |
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Thanks |
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06-18-2022, 12:20 PM | #17 | |
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i’m not doing it myself. |
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06-18-2022, 03:01 PM | #18 | |
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Not ready to drop 9k on a full cat back system so I’ll see how the res delete goes. |
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06-18-2022, 09:36 PM | #19 | |
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06-18-2022, 11:09 PM | #20 |
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The topic have been debated here a lot but coming from someone that had them both, my take is the following:
Racechip is a simple plug and play that provides for a good increase in power. JB4 is a more robust device that for map 1 is the same connection as Racechip but if you want to get more out of your car you will need to connect the extra 2 connectors but you will have direct support from the developer. JB4 also allows you to log your car parameters, delete codes, and have custom maps for different fuels octanes. Here are some dyno runs but since they were not done on the same day, they are kind of useless. My dyno showed 573 hp 564 tq stock and with the Racechip on map 7 620 hp 657 tq. Best draggy was 10.98 1/4 mile Jb4 map 1 on pump 93 provided 625hp 663 tq Map 2 641hp 678 tq on pump 93 draggy 10.74 1/4 mile full tank on my vert Map 3 659 hp 687 tq E40 blend, have not done more draggy runs yet. Very hot down here in Miami. Hope this helps. |
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06-19-2022, 02:19 AM | #21 |
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Yeay, I’ve had a jb4 on the 435 and then the M4 and it seemed you couldn’t plug it in and get smooth power delivery through the range without a lot of fiddling.
On the 435s N55, the Dinan stage 1 module, the $2400 box, worked superb. I didn’t try the equivalent Dinan module on the M4 because it didn’t need it really and I had moved to M850. Didn’t try anything on the M850. |
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