Automotive Mechanic Grafton

Mechanical Repairs

We take care of repairs that keep your vehicle safe and reliable.

From engines and brakes to suspension, we get it sorted with attention to detail and no shortcuts—just honest work that gets you back on the road safely.

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4x4 Upgrades

Our 4x4 mechanics in Grafton utilise top-of-the-line components from renowned Australian manufacturer Torqit, ensuring optimal vehicle performance.

Torqit’s exhaust systems are designed to maximise power, torque and fuel efficiency, providing you with an unbeatable driving experience. For a greater boost in power, sound and efficiency, Torqit’s performance headers are the ideal solution.

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Suspension Kits

At OSP Automotive & Marine, we supply and fit suspension kits that give you more control, better ride quality and the clearance to go wherever the road—or track—takes you.
From long-distance towing to weekend off-roading, our team helps you choose the right suspension solution for your setup. We fit premium-quality kits designed to handle rough conditions, uneven loads and daily wear.

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EFI Diagnosis

OSP Automotive & Marine offers a comprehensive EFI diagnosis in Grafton and mechanical fault diagnosis service. Using specialised diagnostic tools, we can assess the performance of your EFI system, detect any error codes or malfunctions and pinpoint the root cause.

We also provide an in-depth analysis of the mechanical components, such as the engine, transmission, brakes, suspension kits and other relevant systems, to detect any mechanical faults. If repairs are required, we carry out all mechanical repairs in-house using trusted parts.

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Exhaust Upgrades

A well-designed exhaust system isn’t just about noise—it’s about balance. Our muffler and exhaust upgrades are tailored to enhance your vehicle’s output while maintaining driveability.

If your factory exhaust is holding you back, it’s time to upgrade. At OSP Automotive & Marine, we install performance exhausts in Grafton that deliver serious gains—not just noise. You’ll get better flow, more torque and a deeper note that makes your presence known.

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Pink & Blue Slips

Our experienced technicians have the tools and expertise to conduct comprehensive vehicle inspections to ensure your car meets all safety requirements.

By getting your blue or pink slip, you’ll be able to ensure compliance with road safety regulations and legal requirements. Plus, we can identify any potential issues or safety hazards early on, helping to prevent accidents and breakdowns. We take the time to explain any issues clearly so you know exactly what’s needed to get your vehicle road-ready.

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Dyno Tuning

Manufacturers tune engines conservatively — for global emissions compliance and market segmentation, not for Australian conditions or how you actually use your vehicle.

The result? Sluggish throttle response, more fuel stops than necessary, and a diesel that feels like it's always half-asleep.

A custom ECU remap by OSP recalibrates your engine's control unit to unlock the power, torque and efficiency your diesel was actually built for.

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At OSP Automotive & Marine, we provide trusted automotive services in Grafton, helping you keep your car or 4WD running at its best. With over 35 years of combined experience, our local team handles everything from general servicing and log book servicing to performance upgrades, mechanical repairs and EFI fault diagnosis.

Whether you need suspension kits, a performance exhaust, rego checks or fault diagnosis, we’ve got the gear and know-how to get it done right. We also supply and fit 4x4 accessories and offer ECU remapping for diesel 4WD's to boost performance and functionality off-road. We’re here to help you stay safe, stay road-legal and get the most out of your vehicle—whether you’re commuting, towing or heading off-road. No pushy upsell, just honest service and high-quality work from a crew that takes pride in doing things properly.

We also offer a 10% pensioner discount on labour to help make essential servicing more affordable.

Call us on (02) 6695 2155 to book your next service.

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