Coil Packs

Same coil, same spark output. The LED versions have a built-in blue indicator that flashes each time the coil fires. It gives you a quick visual check on each cylinder without needing a scan tool. Available on LS3 style coils only.

Yes. FiTech sells individual LS3 style ignition coils in both standard and LED versions. If you've isolated a misfire to one cylinder, swap the single coil and keep the rest.

The Go Spark round coil is designed to pair with the FiTech Go Spark CDI ignition box. It has matched impedance for the CDI system and produces up to 50,000 volts. It mounts with a universal bracket that fits most engine bays.

FiTech Go Spark LS3 style coils are designed for LS EFI swaps and modern LS-equipped vehicles. Check your specific LS platform and coil connector type before ordering to confirm fitment. Contact tech support if you need help confirming compatibility.

Common signs include a check engine light with a misfire code, rough idle, hesitation under throttle, or a noticeable drop in engine performance. A scan tool can help isolate which cylinder is misfiring so you can target the replacement. Worn spark plugs can also contribute to coil stress, so check your plugs at the same time.