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| Brand | EVIL ENERGY |
| Product Type | Ignition Coils |
| OEM Replacement | UF743 |
| Spark Energy | 111mJ |
| Spark Duration | 1.8 mS |
| Maximum Voltage | 52000V |
| Primary Resistance | 0.53 ohms |
| Secondary Resistance | 4.47k ohms |
| Turns Ratio | 71 |
| Model | Year | Engine |
| CTS | 2016-2019 | 6.2L V8 Supercharged |
| Escalade | 2017-2022 | 6.2L V8 Gas |
| Escalade | 2017-2020 | 6.2L V8 Flex |
| Escalade ESV | 2017-2021 | 6.2L V8 Gas |
| Escalade ESV | 2017-2020 | 6.2L V8 Flex |
| Model | Year | Engine |
| Camaro | 2016-2021 | 6.2L V8 |
| Camaro | 2017-2021 | 6.2L V8 Supercharged |
| Corvette | 2014-2019 | 6.2L V8 |
| Corvette | 2015-2019 | 6.2L V8 Supercharged |
| Express 2500 | 2021 | 6.6L V8 |
| Express 3500 | 2021 | 6.6L V8 |
| Silverado 1500 | 2014-2018 | 4.3L V6 Flex |
| Silverado 1500 | 2014-2019 | 5.3L V8 Flex |
| Silverado 1500 | 2014-2019 | 5.3L V8 Gas |
| Silverado 1500 | 2016-2018 | 5.3L V8 MHEV |
| Silverado 1500 | 2014-2019 | 6.2L V8 |
| Suburban | 2016-2019 | 5.3L V8 Gas |
| Suburban | 2015-2019 | 5.3L V8 Flex |
| Tahoe | 2016-2019 | 5.3L V8 Gas |
| Tahoe | 2015-2019 | 5.3L V8 Flex |
| Tahoe | 2018-2019 | 6.2L V8 Flex |
| Tahoe | 2018-2019 | 6.2L V8 Gas |
| Model | Year | Engine |
| Sierra 1500 | 2014-2018 | 4.3L V6 Flex |
| Sierra 1500 | 2014-2019 | 5.3L V8 Flex |
| Sierra 1500 | 2015-2019 | 5.3L V8 Gas |
| Sierra 1500 | 2016-2018 | 5.3L V8 MHEV |
| Sierra 1500 | 2014-2019 | 6.2L V8 |
| Yukon | 2015-2019 | 5.3L V8 Flex |
| Yukon | 2016-2019 | 5.3L V8 Gas |
| Yukon | 2015-2018 | 6.2L V8 Flex |
| Yukon | 2015-2018 | 6.2L V8 Gas |
| Yukon XL | 2015-2020 | 5.3L V8 Flex |
| Yukon XL | 2016-2020 | 5.3L V8 Gas |
| Yukon XL | 2015-2020 | 6.2L V8 Flex |
| Yukon XL | 2016-2020 | 6.2L V8 Gas |
Unleash the full potential of your Gen 5 V8 with the EVIL ENERGY ignition coil series. Specifically engineered as a high-performance replacement for the OE UF743, this vehicle coil kit is precision-tuned for the advanced direct-injection demands of the LT platform. Whether you're pushing a 6.2L Supercharged Corvette or maintaining a high-mileage ignition coil Chevy Silverado, our coils deliver a massive 52,000V maximum voltage and 111mJ spark energy to ensure consistent combustion in every car ignition coil cycle.
Swap OE UF743 for EVIL ENERGY high‑output ignition coils and unlock maximum ignition energy and consistent performance. Straightforward installation, premium construction, and unbeatable value for street and performance use.

Engineered for improved combustion performance and a smoother driving experience, EVIL ENERGY ignition coils combine power, consistency, and durability for optimal engine operation.


Don't let a failing vehicle coil compromise your engine's reliability. Our coil ignition system is precision-engineered to address and resolve the most persistent issues faced by GM owners. Upgrading to the EVIL ENERGY ignition coil provides a permanent fix for:



| Policy | Details |
|---|---|
| Cancellation Policy | Orders can be canceled within 48 hours of placement. Refund processed in 3-5 business days. |
| Returns Policy | Returns accepted within 180 days. Full refund within 90 days; 15% fee for 90-180 days. |
| Non-Returnable Items | Only regular-priced items are eligible for refunds; sale items are non-refundable. |
| Refund Processing | If no refund received, check your bank/credit card. For ongoing issues, contact support@ievilenergy.com. |
Effective from August 25, 2024. Price drops within 7 days of purchase can be claimed.
EVIL ENERGY reserves the right to interpret, modify, or terminate this policy in accordance with applicable laws and regulations.
If you need further information or assistance, feel free to ask!
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