• HI-6 Ignition Amplifier w/ built-in Rev Limiter
  The Crane HI-6 is a supplemental ignition, multi spark, capacitive discharge, electronic amplifier that integrates in with the factory ignition system. You run the ignition amplifier in series with your factory ignition coil (whether external or internal). By doing so, the amplifier is able to hold a reserve charge inside and use it under normal and aggressive driving conditions. The reserve charge will supply a higher energy spark which will not only give you a cleaner and thorough burn of air-fuel mixture, but it will give you an increase in horsepower and throttle response.  The Fireball HI-6 utilizes the latest state-of-the-art technology, and when used with the recommended Crane coil, delivers a spark gap current three times greater than that of the competitive systems and almost ten times greater than that of the stock ignition!  This high spark gap current produces fast growth of the initial flame kernel and a stable flame front, for greatly increased combustion efficiency.  Dyno tests shows significant power gains that result in reduced oval track lap times, lower drag strip ET’s, and higher MPH.  All units come with Crane’s unique sequential rev limiting technology that fires a spark to all cylinders equally at the rev limit. This will virtually eliminate engine and drive train stress. You can adjust the limit in increments of 100 RPM anywhere from 500 RPM to 9,900 RPM. All amplifiers works even better when combined with Crane’s External Ignition Coil.
  

• HI-6 DI² Ignition Amplifier for Distributorless Engine Applications w/ built-in Rev Limiter
  The Crane Fireball HI-6DI² delivers a spark gap current up to four times greater than the stock ignition.  This high spark gap current promotes fast growth of the initial flame kernel into a stable flame front, for greatly increased combustion efficiency and performance

  The Fireball HI-6DI² is designed for distributorless applications such as the Mitsubishi Eclipse.  It can also be used with most other four cylinder distributorless engines with two coils.  (Note: This unit is not compatible with six cylinder engines.)

  The Fireball HI-6DI² system is the most technologically advanced member of the Crane HI-6 family and includes dual coil outputs (for distributorless applications), two stage rev limiter and timing retard capability.  The timing retard feature is especially useful when raising the boost level on turbocharged applications or when adding a nitrous oxide system.

• HI-6 TR Ignition Amplifier w/ built-in Rev Limiter & Timing Retard Controller
  The Crane Fireball HI-6TR System combines the proven ignition advantage of the Fireball HI-6 plus easily adjusted timing retard capabilities!  The HI-6TR is designed for applications that require driver adjustable, externally switched, or boost proportional timing retard.  The HI-6TR works especially well with nitrous oxide systems and turbo or supercharged applications.  When used with the correct Crane Coil (PS91 or PS92), the HI-6TR delivers a spark gap current three times greater than competitive systems and almost ten times greater than stock systems!  This high spark gap current promotes fast growth of the initial flame kernel into a stable flame front, for significantly increased combustion efficiency!  Dyno tests with the Fireball HI-6TR show sizeable power gains.  HI-6TR systems include the main capacitive discharge ignition box and under dash mounted, driver adjustable, timing control module.
  

• PS91 External Ignition Coil
  Crane Fireball PS91 Ignition Coil is general ignition coil upgrade.  It produces up to 70% more spark energy than stock coils with outstanding reliability.  The Crane Fireball PS91 coil can be used with the Crane Fireball Ignition Amplifiers for added performance or it can be used just as a replacement for the factory coil.  The Crane PS91 Coil are designed for use both on the street and at the track.
  

PS92 External Ignition Coil
The Crane Fireball PS92 Ignition Coil is specifically designed for use with Crane Fireball “HI” series ignition amplifiers used in serious racing and Pro/Street applications.  It is the most powerful coil available.  These coils produce more spark energy than any similar coil available, and must be matched with the correct Crane Fireball ignition for maximum performance and reliability.