all of which hinder performance.----Mishimoto is proud to launch our new lineup of ignition coils, aimed at providing high-quality replacements that can bring your vehicle up to Stage 0 before moving on to horsepower adding modifications. Our ignition coils are designed and tested to meet or exceed OEM MOPAR performance standards and are available as a single coil or in a set of 8. Once installed with a set of new spark plugs, one can expect a refreshed ignition system with improved engine startup, a smoother idle, and restored performance from your HEMI.----Mishimoto ignition coils are an ideal replacement for worn or defective factory coils. As with all our products, these ignition coils include our signature Mishimoto Lifetime Warranty.