Harman Brothers Racing

Harman Brothers Racing Leading the way in Holden and Ford upgrades and precision dyno tuning using the latest technology to Don't settle for anything less, come and see the experts.

Specialising in performance upgrades and dyno tuning for late model Australian and American performance cars. Jonathan has been dyno tuning late model Commodores and Falcons since 2005 making him the most experienced in the South Island.

Fuel economy wasn’t in mind when Dodge decided to fit a Viper V10 and 6 speed manual into a pickup truck, but fun defini...
12/05/2026

Fuel economy wasn’t in mind when Dodge decided to fit a Viper V10 and 6 speed manual into a pickup truck, but fun definitely was!
We had this beast in for tuning last year after the owner carried out some extensive engine work including camshaft and cylinder head upgrades.
The end result was 573hp/427kW’s at the wheels, making it one of the most powerful naturally aspirated vehicles we’ve had on the dyno!

Address

24 Leeds Street, Phillipstown
Christchurch
8011

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