WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.APR Ignition Coils (MS100219) are specifically engineered for the Audi 4.0 TFSI (EA824) V8 engine, providing a direct plug-and-play performance upgrade. While many owners look to "R8" coils for more power, technical testing reveals those factory units offer no advantage. APR's solution, however, delivers a 6% increase in energy output over the stock 4.0T coils. This increased energy ensures a stronger, more consistent spark, which is critical for maintaining performance in high-boost, high-horsepower applications like the S6, S7, RS6, and RS7.
The performance gain is achieved through meticulous internal engineering: APR increased the diameter of the copper windings to reduce resistance and utilized larger, stronger neodymium magnets. Additionally, upgraded silicon steel shielding and Zener diode voltage regulation ensure that the primary inductance is perfectly balanced for the 4.0T's operating range. Every batch is subjected to a brutal 73-hour endurance test, totaling over 15.7 million firings, ensuring these coils can withstand the extreme heat and stress of a twin-turbo V8 engine bay.
Features:
- Verified Performance: 6% more energy output than factory coils for a more powerful spark and more efficient combustion.
- Precision Engineering: Increased copper winding diameter and enhanced neodymium magnets maximize coil efficiency.
- Advanced Shielding: Silicon steel shields reduce energy loss and improve flux flow within the pencil-style coil.
- Rigorous Endurance Testing: Each batch is tested for 73 hours or 15.7 million firings to ensure long-term reliability.
- Vibrant Red Housing: Features a unique red finish with the APR logo, providing a custom look for your engine bay.
- Direct Fitment: A true plug-and-play replacement designed specifically for the EA824 4.0T V8 engine.
Product Contains:
- (1) APR High-Output Ignition Coil (Red Housing)
Technical Specifications:
| Specification | Details |
|---|---|
| Output Increase | 6% over stock factory units |
| Housing Color | Red with APR Logo |
| Batch Testing | 73 Hours / 15,768,000 firings |
| Warranty | 1-Year Unlimited-Mile Direct Replacement |
Installation Note: For V8 engines, a full set of eight (8) ignition coils is required to ensure consistent spark energy across all cylinders.
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