<h2>High-Dielectric Ignition Coil and Iridium Spark Plug Kit for 2013-2016 BMW 7 Series</h2> <p><strong>Complete Ignition Overhaul:</strong> Direct-fit replacement ignition kit engineered to eliminate high-boost misfires, restore clean flame propagation, and replace heat-fatigued factory coils and plugs on the twin-turbocharged 4.4L V8.</p> <h3>The Stock 7 Series Thermal Fatigue Problem</h3> <p>The BMW N63TU engine utilizes a "hot-vee" layout, placing the turbochargers directly inside the engine valley. This architecture generates intense radiant heat that continuously bakes the cylinder head components. Over time, OEM ignition coils suffer from dielectric breakdown, internal epoxy cracking, and oxidized primary/secondary copper windings. Concurrently, factory spark plugs suffer from premature electrode erosion under high cylinder pressures, resulting in spark blowout, erratic idle, cold-start hesitation, and Drivetrain Malfunction misfire codes (DME shadow codes).</p> <h3>The Engineering Solution</h3> <p>This comprehensive service kit features eight heavy-duty coil-on-plug assemblies engineered with high-purity internal copper windings and reinforced dielectric casing to withstand sustained underhood thermal cycling. Paired with eight fine-wire iridium spark plugs, this kit requires lower ignition voltage to initiate combustion, ensuring a concentrated, stable arc across the entire rev range. Blade terminals and direct-fit connectors ensure zero resistance loss and factory-spec signal transmission from the DME.</p> <h3>Technical Specifications</h3> <table width="100%" style="border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;"> <tr style="background-color: #f9f9f9;"> <td style="padding:8px;"><strong>Fitment</strong></td> <td style="padding:8px;">2013-2016 BMW 7 Series (750i, 750Li, xDrive)</td> </tr> <tr> <td style="padding:8px;"><strong>Engine / Chassis</strong></td> <td style="padding:8px;">4.4L Twin-Turbo V8 (N63B44O1 / N63TU) / F01, F02</td> </tr> <tr style="background-color: #f9f9f9;"> <td style="padding:8px;"><strong>Stock Output</strong></td> <td style="padding:8px;">445 hp / 480 lb-ft (Approx)</td> </tr> <tr> <td style="padding:8px;"><strong>Part Number</strong></td> <td style="padding:8px;">UF592, UF-592, 12138647689</td> </tr> </table> <h3>Compatibility</h3> <ul> <li>2013-2015 BMW 750i 4.4L V8 Gas (F01)</li> <li>2013-2015 BMW 750i xDrive 4.4L V8 Gas (F01)</li> <li>2013-2015 BMW 750Li 4.4L V8 Gas (F02)</li> <li>2013-2015 BMW 750Li xDrive 4.4L V8 Gas (F02)</li> <li>2013-2015 BMW ActiveHybrid 7 4.4L V8 Electric/Gas (F02)</li> <li>2016 BMW 750i / 750i xDrive 4.4L V8 Gas</li> </ul> <h3>The BMW Precision Standard</h3> <p>Engineered to exact European electrical impedance tolerances, this kit is designed to ensure smooth engine balance, proper knock regulation, and total prevention of check-engine lights (CEL) under wide-open throttle load.</p>