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Description
MSD Ignition Coils, Smart Coil, Bigwire, Kit, Red - 8289-KITOverview: The MSD Smart Coil Big Wire Kit allows you to run dwell time over 5 milliseconds to gain the most of the Smart Coils. It will allow the coil to produce 50,000 peak voltage and peak energy of 190 millijoules, this means you get hotter spark at the plug to burn the maximum amount of fuel in each cylinder to reach the optimal horsepower out of your engine. It is compatible with Holley EFI and many other aftermarket electronic fuel injection
Overview:
The MSD Smart Coil Big Wire Kit allows you to run dwell time over 5 milliseconds to gain the most of the Smart Coils. It will allow the coil to produce 50,000 peak voltage and peak energy of 190 millijoules, this means you get hotter spark at the plug to burn the maximum amount of fuel in each cylinder to reach the optimal horsepower out of your engine. It is compatible with Holley EFI and many other aftermarket electronic fuel injection systems and will run on traditional 12 or 16 volt electrical systems found in race applications. Unique elongated mounting holes accommodate IGN-1A mounting brackets or allow it to bolt in place of an LS coil with 72mm bolt spacing. The MSD Smart Coil will bolt right on to Holley LS cast aluminum valve covers for a super clean look. Available in red or black.
Features:
- Contains two terminated harnesses with 7-pin connector for easier plug-in to Holley LSx main harness or factory GM LSx harness
- The harnesses are labeled for different engine types for GM and Ford cylinder banks even Holley universal coil near plug harness
- More spark energy than any other IGN-1A smart coil on the market for maximum fuel burn during combustion sequence
- Built-in ignitor for compatibility with Holley EFI and many other aftermarket ECU's
- Maximum operating voltage of 17 volts - for compatibility with both 12 volt and 16 volt electrical systems found in many performance/race applications
- Same wiring pinout as other IGN-1A coils for easy plugin upgrades
- Elongated mounting holes to allow direct replacement of IGN-1A coils and will bolt in place of factory LS 1/2/3/6/7 coils with 72mm bolt spacing
- Direct bolt-on to Holley cast aluminum LS valve covers with 72mm bolt spacing
- Available in red or black to match your build
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| Universal |
Specs:
| Brand | MSD |
|---|---|
| Coil Type | Smart Coil |
| Color | Red |
| Emission Code | 4 |
| Inductance | 5.2 mH |
| Maximum Voltage | 50,000 Volts |
| Peak Current | 201 mJ |
| Primary Resistance | .55 Ohms |
| Product Type | Coil |
| Quantity | 8-pack |
| Turns Ratio | 2.87569444444444 |
| Warranty | Limited 1 Year Warranty |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.7 ★★★★★
Based on 1619 reviews
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Product Reviews
★★★★★ 5
Perfect if you want to use Procreate
I wasn’t sure if this would work as well as the regular iPencil, because I had read this one doesn’t have features the more expensive one has. And I have to say, whatever those extra features are I’m not missing them! This works great, it’s very accurate, amazing quality. Considering how much I’m using it in Procreate, I would say it’s more than paid for itself! As expensive as it seems, it’s been a great value for the money. It’s easy to use and the design is simple. You just have to remember to occasionally plug it in to charge it- the end slides open, revealing a type-C charger port. But the battery life on it lasts a long time. I’ve used it all day before without it dying on me! That reminds me, I should probably go plug it in now…
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Reviewed in the United States on December 10, 2025
★★★★★ 5
Great Apple Pencil, easy set up via Bluetooth, and charges extremely fast.
Great value for the money, very easy to use and compatible with most iPads. It charges extremely fast, if you charge it for 10 minutes it’s at 100% even if it was at 10% when you charged it. Very easy to connect to your iPad via Bluetooth, feels good in your hand, and looks like it cost a lot more money than it did.
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Reviewed in the United States on March 29, 2026
★★★★★ 5
Works good
Works great, was easy to connect and it’s easy to use. It’s durable. Most of the time I’m using it instead of my fingers. Pairs well with my iPad A16. It’s not heavy, nor is it too light. Sometimes it’s annoying when I’m trying to use the keyboard on my iPad but it doesn’t pull it up since it’s connected to the pencil, but it’s not too big of a deal. I love the appearance, I’ve always been obsessed with this type of stylus, I found it more practical and easier to use than a traditional stylus. (Plus it makes it so much easier to exit out of ads) I won’t comment on the price since I’m sure it’s worth the money, but I’ll let others be the judge of that. For art purposes, I’m not an artist yet, but I’m practicing, and it works for me, I just can’t comment on how it’ll be for an actual artist though, so please do your research on which will be best for you!
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Reviewed in the United States on April 10, 2026
★★★★★ 4
Not perfect but a good pencil for a good price.
Not as user friendly as the original pencil and battery doesn’t seem to hold a charge very long. After about 4 hours of being charged it was down to 46%. That was intermittent use and non use, with about 3 hours actual use. To charge the original pencil I pulled off the end exposing the lightening connector and plugged it into the receptacle on my iPad. This requires a USB-C cable connection from either the charger or the iPad. Admittedly, it’s not that big a deal, but it feels like a step backwards from the original. The battery longevity is a little more irksome. The pencil is very easy to use, and I’m actually amazed at how the iPad is able to generate text when I write with it, even with my sometimes barely legible script. Much improved over the original. I can live with the minor irritations because it’s a good value for the price.
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Reviewed in the United States on November 20, 2025
★★★★★ 5
Sleek Design, Smooth Writing, and a Fun Tool for Artists and Everyday Use
The Apple Pencil (USB-C) is a streamlined and affordable option for users who want Apple’s signature precision without the premium price of higher-end models. Designed primarily for note-taking, sketching, and everyday creative tasks, it delivers the smooth, low-latency performance Apple Pencil is known for. Writing feels natural, with accurate pressure response and excellent palm rejection when used with supported iPads.
This version connects and charges via USB-C, making it convenient for users who prefer a simple wired setup and already rely on USB-C accessories. It’s lightweight, comfortable to hold, and magnetically attaches to compatible iPads for storage, though it does not support wireless charging or pairing. While it lacks advanced features like pressure sensitivity for artistic shading or double-tap gesture controls found in Apple Pencil (2nd generation), it still performs exceptionally well for students, professionals, and casual users.
However, a device compatibility check is essential before making a purchase. The Apple Pencil (USB-C) works only with select iPad models, and it does not support older Lightning-based iPads. Additionally, artists who rely on advanced drawing features may find this model somewhat limited.
Overall, the Apple Pencil (USB-C) is a well-built, reliable stylus that excels at core tasks. If your iPad is compatible and your needs are focused on writing, annotating, and basic drawing, it offers excellent value within Apple’s ecosystem.
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Reviewed in the United States on January 4, 2026