Doubtless Diesel Performance Ltd is a Far North–based specialist in diesel vehicle performance, service and customisation. Founded and operated by Arran Marshall & Dylan Anderson with roots in Stevenson Engineering and field service experience at AB Equipment, DDP brings decades of hands‑on mechanical expertise to every job. From its base at 7 Walters Way, Coopers Beach, DDP serves both local farmers and four‑wheel‑drive enthusiasts across Northland, offering tailored solutions that blend reliability, power and efficiency.
Core Services
- Performance Tuning & Remapping: Custom ECU remaps for enhanced torque, horsepower and fuel economy, all calibrated on‑site using the latest dyno equipment.
- Routine & Heavy‑Duty Servicing: Full-service inspections, oil changes, belt and filter replacements, and “wet belt” services for Toyota Hilux, Ford Ranger and other popular diesel platforms.
- Diagnostics & Repairs: Comprehensive fault‑finding using advanced scan tools, followed by precision repair work—whether it’s turbo issues, injector servicing or drivetrain troubleshooting.
- 4×4 Accessories & Upgrades: Supply and fitment of bull bars, suspension lifts, winches, spotlights and roof racks, plus custom‑fabricated brackets or diff guards for serious off‑roaders.
- Mobile Field Service: On‑site breakdown response and scheduled maintenance for tractors, utes or commercial fleets throughout the Far North.
Why Choose DDP?
- Local Expertise: A Northland team who know our roads, farm tracks and weather—so you get tuned and maintained setups that perform where it matters.
- Quality & Compliance: We only fit NZ‑approved parts and uphold NZTA WOF and COF standards in every service.
- Transparent Pricing & Loyalty: Competitive, itemized quotes and a digital loyalty programme rewarding every dollar spent—plus bonus points on sign‑up, Mondays and referrals.
- Customer Focus: Friendly, no‑jargon advice; clear service‑condition reports; and post‑service follow‑up to make sure you get the most from your vehicle.
At Doubtless Diesel Performance Ltd, we believe every diesel vehicle can be both a workhorse and an enthusiast’s dream. Whether you need to squeeze extra power out of your farm ute or ensure your off‑road rig never lets you down, the DDP team are here to keep you running strong, mile after mile.
