Performance engine upgrades

If you want to create something special we’d love to make it happen. These are the specialist performance products and upgrades that we use and recommend.

Kelford Cams

Kelford Cams components, including camshafts, heavy-duty valve springs, roller rockers, and valve train components. We can also make fuel injector changes and induction modifications, with dyno tuning to match using VCM software.

Supercharger fitting and tuning using proven performers Harrop, as well as K&N cold air intakes for VTII–VF V8 Holdens.

Harrop Products

Harman Motors is a sales and installation agent for Harrop.

Superchargers
Brake packages
Intake systems
Engine and suspension components

X-Force Exhausts

X-Force exhausts for Holden and Ford dramatically increase performance and in some cases improve fuel economy.

Pacemaker Headers

Pacemaker headers stands as one of the industry leaders in header design and manufacturing. Harman Motors can supply and install headers for most types of vehicles. We test many different vehicles on our dyno and find Pacemaker provides the best value for money

Other exhaust enhancements we offer are competition headers, Tri-Y design, big bore exhausts, stainless/carbon mufflers, exhaust tips, laser cut flanges and high flow cats.

VCM Suite Dyno Tuning

Using VCM Suite, we tune and adjust your engine and transmission to account for modifications such as:

Exhaust system
Induction modifications
Camshaft changes
Fuel injector changes
Transmission modifications
Diff ratio changes and even tyre size changes – which means we get the very best from your car, plus amazing throttle response and improved fuel economy

EBC Brake Pads

We stock a full range of quality EBC brake pads. By selecting the right combination for your vehicle, we can noticeably improve the braking performance of your car at a surprisingly affordable cost.