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Stage 1 - kw
Stage 1 for the VT-VZ Holden Commodore with LS1 V8 involves reprogramming the factory ECU with HP Tuners VCM Edit Suite software. This allows Autotech to remap the fuel and timing tables, increasing torque across the range and improving fuel economy. The auto transmission can also have its patterns adjusted for more responsible shifts between gears. Autotech custom tune your vehicle to ensure the highest levels of performance. Enquire Now »
Stage 2 - kw
The Stage 2 Kit for the VT-VZ Holden Commodore with LS1 V8 includes the following components: HP Tuners VCM Edit Suit ECU Retune High Flow OTR Cold Air Intake XForce Stainless Headers + cat XForce 2.5 inch Stainless Exhaust System Enquire Now »
Stage 3 - kw
The Stage 3 Extreme Kit for the includes the following components: APS High Flow Intercooler APS Twin Turbochargers APS Cast exhaust Manifolds + Stainless Ducting APS High Flow Air Intakes APS High Flow Blow off Valve A Stainless 2.5 inch exhaust and fuel system are optional extras. Enquire Now »
Stage 4 - kw
The Stage 4 Extreme kit's turbochargers are capable of over 500kw, however they are held back by the factory pistons and rods in the LS1 engine. Autotech have extensive engine rebuilding services that can meet your requirements if you are after more power. We build our own engines and they run as quietly as the factory engine, but handle applications well over 600HP. Enquire Now »