boost your Holden’s performance

With decades of experience under the bonnet, we’ve built a reputation for unlocking serious power from Holden platforms from daily drivers to purpose built performance rigs.

Morpowa is trusted by Holden owners across South Australia for precision tuning and ultimate power gains. Whether you're chasing more power from a custom dyno tune or a harrop supercharger package, you can count on us to treat your Holden like it’s our own.

Get a quote
Harrop logo in red and black text.

South australia’s #1 harrop dealer for the past 6 years

Morpowa has been proudly partnered with Harrop Engineering for over 7 years and is recognised as South Australia’s #1 Harrop dealer for the past 5 years running.

As Adelaide’s go-to workshop for Harrop performance upgrades for your LS-based Commodore, we specialise in the installation and tuning of Harrop superchargers, differentials, and driveline components. Whether you’re building a high-performance street car or dedicated track vehicle, Morpowa delivers expert installation, custom tuning, and proven results.

If you’re serious about unlocking your Holden’s full potential, Morpowa is the Harrop dealer Adelaide trusts.

Car engine bay featuring a black Harrop supercharger, a large carbon fiber intake tube with an air filter, various hoses and wiring, a red battery terminal cover, and a yellow oil fill cap.
Close-up of a black engine cover with the label 'HARROP' on a car engine, surrounded by various hoses and components.
Car engine being tested on a dynamometer with digital screens displaying performance data and measurements.

True plug and play, full fuel and ignition control, complete M150 GPR functionality, tuneable traction, torque, boost, and dual lambda control, built in safety features and much more.

the product that will change the game in the VE/VF tuning world with complete vehicle integration. Our true plug and play Motec 150 commodore package.

Changing the Game

Get a quote

Standalone Upgrades

  • CUSTOM TUNE 98 OCTANE FUEL ONLY

    • Supply and fit Harrop OTR

    • Supply and fit facia panel

    • Supply and fit infill panel

    • Conduct complete custom dyno tune

    • Calibrate auto transmission to customers requirements (if auto equipped)

    • Full data logging on road test and double check with road conditions

    • DPE Ceramic Coated Headers

    •             DPE Dual Active Cat Back Exhaust

    •             Hi flow 3”cats and front section

    •             3” full stainless twin system

    •             3.5” Twin Chrome tips

  • •              Crow performance cam – choice of cam to suit your vehicle

    •              3Bolt Cam Gear

    •              ARP Cam bolts

    •              LS7 lifters

    •              New lifter buckets / guides

    •              New lifter bucket bolts

    •              MLS Head gaskets

    •              ARP performance head bolts

    •              Crow dual valve sprint kit – inc valve stem seals, retainers and collets

    •              Chrome moly push rods to length

    •              Total full synthetic oil, Ryco filter and GMH Coolant

    •              Full custom Dyno tune to suit

    • Complete Supercharger kit

    • Deatschwerks 650cc Injectors

    • Boost pulley upgrade

    • 2.5 bar map sensor

    • OTR with facia and infill panels

    • Fitted and custom dyno tune

Get a Quote
Dashboard displaying engine performance data, with a focus on dynamometer readings showing 867.1 Kilowatts and 1162.8 horsepower, next to a vehicle with an open hood in a garage or workshop.
Silver Holden car with open hood inside auto workshop, front view
Box labeled Crow Cams Performance Valve Train Components with a larger parts box behind it.
Silver Holden Commodore SS with dual exhaust pipes parked in a garage, view from the rear.
Close-up of the dual exhaust pipes at the rear of a silver car.
A box containing small black and silver engine components and gold rings, neatly organized in foam slots. The box has a label with the Cheve logo and American flag.
Close-up of a car front grille with the Holden logo, partially obscured by blurred objects, in a garage or workshop setting.
Person holding a large camshaft in a workshop, with engine components in the background.
Close-up of a car engine bay with various components, including a black hood scoop labeled 'Harrop,' a red battery terminal cover, a carbon fiber intake pipe, and green serpentine belts.
Close-up of a Harrop supercharger installed in a car engine bay, with black hoses and mechanical components visible.
Box of automotive clutch or transmission springs organized in compartments, with some blue and silver parts in clear plastic bags.
Underneath view of a car showing the chrome exhaust pipes, transmission, and parts of the oil pan.
Close-up of dual chrome car exhaust pipes on the rear of a silver vehicle.
Two metal racing valve springs standing upright next to a black and yellow box labeled 'PAC Racing Valve Springs' on a white surface.
Black car parked inside an auto shop, with a white vehicle next to it, and various tools and equipment in the background.
A mechanic working underneath a car lifted on a hydraulic lift, draining or filling oil with a black oil catch pan and a long funnel.