04-19-2021, 01:32 PM | #23 |
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Much better, the small correction is normal for the B58...
have now fun with driving with the better timing you should also gain Performance
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04-19-2021, 01:48 PM | #24 |
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'17 440xi GC THP, MPPSK, AA Catted DP, Dinan CF CAI, TU HPFP, BM3, xHP, E-Sys
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04-20-2021, 08:25 AM | #25 | ||
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New plugs regardless of the brand will make the car run more smoothly. And S55 plugs aren't remotely right for our engine. Yes. Put it in a plastic bag, pack it in a box, and ship it back. |
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04-27-2021, 08:51 AM | #27 |
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04-27-2021, 01:32 PM | #28 |
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For FCP purchases, don't forget to checkout with Paypal. Then sign up for Paypal's return shipping program...return shipping is then free
https://www.paypal.com/us/webapps/mpp/returns |
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10-21-2021, 06:58 AM | #30 | |
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06-06-2022, 04:31 PM | #31 |
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I had misfire with 97506 as well while over tightened it by 7 nm.. now im switching to 94201. can you let me know how the 94201 performed?
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06-12-2022, 09:20 AM | #32 |
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I recently switched from 97506 to 94201. I had no issues with the 97506. I swapped in a set of new Dinan coils as I read the 97506 are taller and can damage the coils.
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07-25-2022, 10:26 AM | #33 |
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Sorry to bump this old thread, but has anyone tried the plugs from Bosch?
https://www.fcpeuro.com/products/bmw...ch-12120040551 https://www.boschautoparts.com/p/dou...rk-plugs-8169- I think these are OE on certain BMWs, but not the F30 B58s. They're $11 to the $18 NGK ones, which would normally be my preference. |
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08-08-2022, 08:54 AM | #34 | |
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08-19-2022, 09:43 AM | #36 |
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My car feels and idles smoother with the NGK 94201. I'm probably going to run NGK from this point on. The Champions I pulled out had only 500 miles gaped to .022" and I dropped in the NGK gaped to .022"
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08-20-2022, 01:23 PM | #37 |
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I'm really surprised to see like for the stock plugs. I bought a new set of champions at 15k miles, and at 20k decided to try the ngks. The engine was noticeably more responsive and energetic after switching. Smoother and more fire in there. I'd recommend anyone who hasn't tried give them a go. Ngk 94201 all day 🔥
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09-04-2022, 09:58 AM | #38 |
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Hello,
I bought my F31 340i used at 50k km they supposedly did spark plugs before selling the car. I can't be sure they actually did it... Because I may be extreme in car maintenance, I decided to swap plugs and coil at 70k Running stage 1 93/98 RON here is how they looked (BMW NGKs) I think they changed actually changed it as they claimed I swapped to NGK branded 93201, stock gap (0.28-0.30) what do you think about the old ones ? thx ! |
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09-06-2022, 10:18 AM | #39 | |
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10-10-2022, 11:00 PM | #40 |
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Anyone see or try these yet. They've been out for s55 for a bit, now it looks like for b58 there's another plug listed. High power flex fuel. Pretty sure this is new.
https://www.realoem.com/bmw/enUS/sho...diagId=12_2054 https://www.fcpeuro.com/products/bmw...mw-12120047375 Fits 340/440. Anyone know anything about these Last edited by B58 parts; 10-10-2022 at 11:09 PM.. |
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10-11-2022, 06:16 PM | #41 | |
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10-14-2022, 08:10 AM | #43 |
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$50 each. Yikes.
Edit: after doing some searching it's not anything special. most sites list it as a direct replacement for the standard plugs, and if it's a bosch plug then it's a double platinum that isn't as robust as the OEM iridium options from NGK and Champion.
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Last edited by kern417; 10-14-2022 at 08:30 AM.. |
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10-14-2022, 10:26 AM | #44 |
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First link has them at $50 when searching the part number. The rest are around $18-19. Still pretty expensive. I do have to wonder what "high power/output" means for a plug.
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