
Precision Engineering
Custom plasma-cut oil pan modifications designed for high-performance racing and custom engine clearances.

Precision cutting to clear custom headers and steering racks.

Custom vent porting to optimize oil scavenging and pressure.

Custom pickup tube and adapter plate fabrication.

Plasma-matching billet pans to OEM steel bodies.
Founded by racers, Ronin Performance Circle began in a small garage with a single plasma cutter and a passion for eliminating engine failure through better oil management.
To provide the high-performance community with surgical precision modifications that allow engines to breathe and survive under extreme G-forces.
Becoming the global standard for custom oil pan fabrication, pushing the limits of what is possible in modern engine architecture.
Absolute accuracy, uncompromised durability, and a relentless pursuit of mechanical perfection in every cut we make.
"The custom clearance cut on my dry sump setup was perfect. The edges were clean, and the fitment was absolute. My engine is running smoother than ever."
- Marcus T., GT3 Racer
"I needed specific venting for a custom turbo manifold build. Ronin delivered exactly what the blueprint called for. Truly professional work."
- Sarah L., Pro Builder
"Fast turnaround and the plasma quality is top notch. Highly recommend them for any high-stress engine builds that need custom oiling."
- David K., Drift Specialist




Tell us about your engine requirements and the specific clearance or flow challenges you are facing.
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