Quote:
Originally Posted by JonEQuest
I have stock N55 Eldors and I have to admit, after 2 years of them I have not had even ONE misfire. But I am thinking of replacing the coils in my daughters stock N54 so I may get the B58's and just give her my Eldors. Do the top B58 coils fit the N54 plug and play or do you have to mod stuff? I would really like the most powerful plug and play option available. I don't care to mod stuff and rig up the springs, etc. I also plan to upgrade from my 17T's to maybe 19T's or Frankenturbos soon, so I may as well make sure I have the right coils.
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I will have something shortly that doesn't require any spring modifications if you don't use the factory resistor. It will just be a stainless insert that goes into the top side of the coil. Really the only spring mod needed with the latest Eldor B58 coils if you use the factory resistor from the eldor boot is to cut them at the right length on the plug side (I provide the length required or I can even cut them for you if I know exactly what coil you are using).
The biggest non plug and play part is splicing in the wiring harness or using a wiring harness adapter. I recommend just splicing it, a good crimp or solder connector is always better than an adapter electrically and it is less bulky and can just be put inside of the wiring guide. If you ever want to go back to stock just buy a used injector harness or crimp new terminals on (I provide the stock style terminals and rubber seals with my kit).
-Rich
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2007 E70 X5 4.8i with 10" android screen Running 265/60/18 AT34s All Terrains (Mainly for road trips)
2008 E90 335i with 10" android screen, 7" intercooler, inlets, Dinan intake, JB4 BEF, E85 conversion, Mfactory LSD, M3 suspension, EDC shocks with custom controller.