Holden

Custom Dyno Tuning

Harman Motors uses and recommends the following products.  This list is not exhaustive however, and for more information on these and other products as well as custom dyno tuning, please call us on 03 366 2375.

X-Force Exhausts

X-Force exhausts have proven to dramatically increase performance and in some cases, also improve fuel economy.  We can install these exhaust systems on your Holden or Ford. Make sure to check out dyno graphs which show some increases!  Of course, each vehicle will be different, so give us a call to discuss which system would suit your vehicle best.

  • Big Bore Exhausts 

  • Stainless/Carbon Mufflers 

  • Exhaust tips 

  • Laser cut flanges

  • High flow cats

Kelford Cams

We use a large range of Kelford Cams products which enables us to offer reliable engine rebuilds as well as high performance applications.  If you require more information on a specific Kelford Cams product, call us on 03 366 2375

  • Camshafts

  • HD Valve springs 

  • Roller rockers 

  • Full range of Valve Train components

VCM Suite

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 Holden – along  with amazing throttle response and improved fuel economy. 

We tune LS1,  LS2, LS3, LSA (Gen III—Gen IV)  L76, L98, and Alloytech V6 powered vehicles.

Penrite Oils

Harman Motors uses and recommends Penrite products – for use in general servicing and custom dyno engine tuning to performance applications.  

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 on Holden LS1/LS2/LS3/LSA engines.  To find out which header best suits your application, please call us on 03 366 2375.

  • Competition headers

  • Tri Y design

  • Tuned design

Harrop Products

Harman Motors is an agent for Harrop.  We use a range of Harrop products and offer our fitting and tuning services.

  • Superchargers   

  • Brake Packages    

  • Intake Systems    

  • Engine and Suspension components

EBC Brake Pads

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

Cold Air Intakes

We have quality Cold Air Intakes for VTII – VF  V8s, using quality K&N re-usable filter elements.