LS1 300KW Mafless PCM Reflash Service - Holden Commodore VT VX VY VZ 5.7L V8

Unlock the full potential of your LS1 5.7L V8 with our 300KW Mafless PCM Reflash Service. This dyno-developed tune is calibrated to safely extract maximum power from LS1 engines fitted with a high-flow exhaust and cold air intake or OTR, while running a standard camshaft.

This is a mail-in ECU service. After purchasing, you'll receive an email with the address to send your PCM. Turnaround is 1-2 business days, and your ECU is returned via express post.

What's Included in the Reflash

• 300KW mafless tune for high-flow exhaust and OTR/CAI with standard camshaft
• Manual or automatic transmission calibration
• VATS security disabled or enabled (your choice)
• Semi-auto transmission settings — trans holds and launches in 1st/2nd when manually selected
• Performance shift mode — harder, faster shifts when power button is pressed; standard shifts in normal mode
• Diff ratio recalibration if you've changed your diff gears

Compatibility

Suits all Holden Commodore VT, VX, VY, and VZ models with the LS1 5.7L V8 engine (manual and automatic).

Important Notes

This 300KW mafless tune is dyno-developed to achieve maximum safe power from LS1 engines with a standard cam, high-flow exhaust, and intake upgrade. The tune can also be run with the MAF sensor connected for registration purposes. When driven conservatively, standard fuel economy or better is retained.

Frequently Asked Questions