Hi-Comp Performance Specialise in LS1/LS2/LS3 Modification and Tuning

Hi-Comp performance has been tuning and modifying LS1 since their introduction more than ten years ago. From exhaust systems, to HARROP superchargers and everything in between.
Hi-Comp have built many LS1 cars including two full drag race commodores from the ground up, both running mid low 9 second passes. Check out photos below to see these awesome cars in action.
All LS1/LS2/LS3 package deals come with full track support at eastern creek raceway using our laptop data logging to help improve your lap times or ¼ mile time at no additional cost.
Many of our mods can be grouped into package deals such as:
  • Over the radiator cold air intakes (otrcai) and mafless tune
  • Twin 2.5 inch or twin 3 inch exhaust with hi flow cats
  • Performance camshaft package, including cam, timing chain kit, valve springs, retainers, locks and pushrods.
If you want to get serious, we can supply fit and tune HARROP or Magnuson supercharger kits, for thrilling power increases, whilst maintaining absolute street manners.
We can also supply and fit fuel systems, injectors, ignition systems, pulleys, cnc ported heads, stroker kits, roller rockers, throttle bodies, manifolds and nitrous oxide. We can also tune the factory computer to get the maximum power out of the lot.

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