Aftermarket & Tuning Parts Machining
Exhaust, intake, chassis, engine bay — your precision partner for tuning brands and racing teams
Aftermarket isn't OEM — orders are often single-piece or small-batch, and clients prize design freedom, surface quality, and quick turnaround. From a custom exhaust section to anti-roll bar mounts to a catch-can bracket, each project needs a shop that handles flexible revisions and produces parts that look as good as they perform. We've supported tuning brands, racing teams, and enthusiasts on countless one-off and short-run projects.
Why Tuning Brands Choose Weiyon
Typical Parts
- Exhaust system: mid-section, tail section, header flanges, muffler housings
- Intake parts: air filter mounts, throttle body adapters, manifold flanges
- Chassis bracing: anti-roll bar mounts, engine bay strut bars, chassis links
- Engine bay: catch-can mounts, oil cooler brackets, turbo / IC piping flanges
- Wheel spacers, hub-centric wheel adapters
- Custom fasteners, fluid line fittings, special bolts and nuts
Compatible Materials
- SUS304 / SUS316 / SUS321 (top choice for high-temp exhaust)
- A6061-T6 / A7075 (lightweight, anodizable)
- SCM440 / S45C (high-strength load-bearing, heat-treatable)
- Titanium Ti-6Al-4V (premium exhaust / weight reduction)
- Copper alloys (contacts, specialty fittings)
Quality & Finish
- Tolerance: ±0.01 ~ ±0.05 mm depending on part type
- Anodizing: black, red, blue, grey, matte (aluminum parts)
- Stainless finishes: brushed, mirror polish, bead-blasted
- Laser engraving for logos / serial numbers (we engrave for partner brands)
- Integrated welding: TIG for stainless and titanium (via partner shop)
Precision processes commonly used in this industry
CNC Milling
Machining centers, CNC mills, gantry mills
CNC Turning
CNC lathes, automatic lathes, conventional lathes
Precision EDM
Wire-cut, sinker EDM, micro-hole EDM (via partner network)
Sheet Metal Fabrication
Laser cutting, turret punch, press, bending, rolling (via partner network)
Surface Treatment
Heat treatment, plating, anodizing, painting, polishing, sandblasting (via partner network)
Is your part within our service scope?
Send a drawing or describe your needs — we'll respond within 1-2 business days.