Key hardware
See product description for included components and manufacturer details.
See product description for included components and manufacturer details.
DIY-friendly; professional help recommended for custom setups.
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This is for a full set of 6
After months of testing, trial & error, and multiple race events VS is proud to announce the release of our latest product "VS - High Output Ignition Coils (HOIC)".
These coils are a great upgrade for those who appreciate the overall driving experience of their car as an everyday vehicle and great for those who are willing to push the limits of their engine. As the OE B58 style coil packs are a fantastic and well performing ignition coil from factory we still managed to reach the limit of them through simple tuning. In simple terms the OE coils can NOT hold charge for a long amount of time before releasing its energy, we used that issue to improve the upgraded coil. Dwell can be held for a longer period of time (recorded in Ms). The more energy it stores/charge during the dwell period the more energy/charge it releases when it comes time to fire. The OE coils weren't capable of holding such charge, they would prematurely release the energy pre-igniting the coil pack and firing again when commanded resulting in a double fire which causes ignition break-up/misfires.
For the best results we do NOT recommend gapping spark plugs when using these coils, gapping plugs only deteriorates the burn efficiency of the ignition setup. The larger the gap the more efficient burn you will get. ("0.030-0.031") Highly recommend OEM champion spark plugs straight from BMW dealership.
When it comes to custom tuning and adjustments we have seen the best results when raising the dwell time to 3.7Ms. Please consult your tuner if you want your dwell time optimized. Otherwise these are plug n play and will perform better right off the bat!
See below the results and data from testing the differences between factory OE coils and the VS HOIC.
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