Two Generations in the Workshop

ABOUT

Hills Performance is a family-run workshop owned and operated by Ben Hill, a second-generation automotive technician with over 25 years of hands-on experience.

Family Run. Locally Owned.

Small, independent workshop based in Narellan. No franchise overheads, no sales targets, no middlemen.

Second-Generation Mechanic.

Ben grew up in the trade. The hands-on experience started long before the apprenticeship did and has continued every day since 1999.

Straight-Up Answers.

No jargon, no upselling, no "we found a few more things." If something needs doing we tell you why. If it doesn't, we say that too.

Classics to Late-Model EFI.

Carburettor Classics through to modern engine-managed Muscle. On-road, Broad experience, proper depth.

Car Servicing Done Properly

SERVICES

Routine servicing keeps your car safe, reliable, and cheaper to run long-term. We handle everything from logbook services to major mechanical repairs, across select makes and models.

Logbook Servicing.

Genuine logbook servicing that meets manufacturer requirements. Your new-car warranty stays intact.

Scheduled & Major Services.

Regular interval services, major services, steering, brakes and suspension. All to manufacturer spec or better.

Quality Parts, No Shortcuts.

Only parts and lubricants we'd use on our own vehicles. Cheap components cause repeat failures and we don't play that game.

Full Safety Inspection.

Brakes, steering, suspension, driveline, tyres, lighting. Every service includes a full mechanical check, not just an oil and filter.

Test Driven Before Return.

Every vehicle gets a road test after servicing. If something isn't right we catch it before you do.

Performance Services

PERFORMANCE

From flash tunes to full engine builds. We're an approved Herrod/SCT tuner for Ford Falcons (BA, BF, FG) and an approved HP Tuners tuner for Holden V8s and late-model GM vehicles. Specialising in Holden, Ford, Chev, LS, V8 2WD street driven classic, modern, muscle, high performance vehicles. Select factory style BF mkII - FG XR6 turbo vehicles, 4 + 6 cylinder EFI, carburetted, normally aspirated rear wheel drive vehicles.

Tuning & Engine Management.

Flash tuning for Ford Falcon BA-FG and Holden Commodore (VT Gen III through VF). Select aftermarket engine management and Carburettor tuning, service, and upgrades.

Fuel & Induction.

Carby, EFI and fuel system conversion, custom and OEM upgrades. Injector servicing and testing. Cold air intakes, bolt on exhaust and ignition system upgrades.

Forced Induction.

Select supercharging kits and upgrades - all tuned on our own dyno to make power safely and reliably.

Engine Builds & Conversions.

Camshaft and cylinder head upgrades. Full engine rebuilds, conversions, LS engine swaps and repairs.

Driveline & Chassis.

Heavy-duty clutches, diff ratio changes, transmission upgrades and conversions. Brake and suspension packages matched to your build.

In-House Dyno and Diagnostics

DIAGNOSTICS

We run both a Mainline 2WD Chassis and 2WD HUB dynamometer for different power level vehicles alongside current diagnostic equipment. Every tune is data-logged and verified, not guessed.

Mainline 2WD Dyno.

Tuning happens in a controlled workshop environment. Safer than road tuning, and measurable and repeatable every time.

Before and After Graphs.

Every performance job comes with dyno graphs showing power, torque, and air-fuel ratio. You see exactly what the work delivered.

ECU Diagnostics.

Deep scanning of ECU and PCM data. Fuel trims, sensor inputs and outputs, live data logging. We find causes, not symptoms.

Wideband AFR Monitoring.

Every tune is verified under load with wideband O2 sensors. No guessing whether your car is running rich or lean.

Speedo & Electronic Calibration.

Speedometer calibration after diff or tyre changes. Electronic adjustments on supported vehicles. On-road fault simulation in the safety of the workshop.

Ready to book your car in?

Whether it's a logbook service, a dyno tune, or a full performance build, we'd like to hear from you.

Get In Touch

CONTACT

Drop in, call, or send us a message. We reply the same day in most cases.

Address2/16 Millwood Avenue
Narellan NSW 2567
HoursMon – Fri
8:30am – 5:30pm