High Performance Ignition Coil for Cadillac CTS (2006-2007) 6.0L

High-Output UF414 Ignition Coils for 2006-2007 Cadillac CTS (LS2 / GM Sigma)

Upgrades the factory ignition system with a complete set of eight UF414 coils, exceeding OEM specifications to deliver a stronger, more consistent spark for the 6.0L V8.

The Stock LS2 Ignition Weakness

As the 2006-2007 Cadillac CTS-V ages, the factory ignition coils endure thousands of hours of extreme under-hood thermal cycling. The original epoxy potting degrades over time, leading to internal resistance increases and high-voltage leaks. Mechanically, this manifests as high-RPM misfires, sluggish throttle response, and incomplete combustion. Furthermore, the aging OEM coils often struggle to maintain adequate spark energy under high cylinder pressures, resulting in a suboptimal fuel burn and compromised power delivery, especially when the LS2 engine is pushed hard or subjected to elevated operating temperatures.

The Engineering Solution

This comprehensive UF414 replacement upgrade utilizes high-grade copper internal windings and advanced magnetic core technology to step up voltage output and drastically decrease charge times. By exceeding factory specifications, these performance coils deliver a hotter, longer-duration spark that resists spark blow-out under heavy engine load. The upgraded exterior housing and premium internal epoxy insulation mitigate the severe heat soak issues inherent to the tightly packed CTS engine bay. The result is a smoother idle, restored fuel efficiency, and precise throttle modulation across the entire RPM band. It is highly recommended for both high-mileage restoration and performance-oriented builds demanding reliable spark delivery.

Technical Specifications

Compatibility

• 2006 Cadillac CTS V-Series (6.0L V8)
• 2007 Cadillac CTS V-Series (6.0L V8)

The Cadillac Caliber

For modern domestic muscle, consistent spark delivery is the foundation of reliable horsepower. This ignition upgrade ensures your LS2 maintains optimal combustion efficiency, translating directly to restored power and a commanding exhaust note without triggering trouble codes.