How Automotive Additive Manufacturing Accelerates High-End Fabrication

Before adopting additive approaches, GRP’s fabrication lead would spend 20 to 40 hours hand-building jigs, fixtures, and exhaust components — cutting, shaping, welding, and refining each element manually. 

Today, those same fixtures can be designed in CAD, printed overnight, and used immediately.

“There’s no machining. No deburring. No rework,” Rob Sorum, Fabrication Specialist at Graham Rahal Performance explains. “You pull the part off the printer, and it fits.” 

This shift has freed hundreds of hours previously lost to manual fabrication work, time now reinvested into higher-value engineering tasks, faster project turnaround, and improved customer throughput.

One of GRP’s most compelling examples involves the Lamborghini Revuelto, a 1,000-horsepower hybrid supercar with highly specialized exhaust requirements. 

The team designed a custom X-pipe, a component critical for exhaust scavenging and overall power delivery. The geometry was complex, and traditional methods would require extensive cutting, grinding, and manual correction. 

Instead, GRP produced custom 316L stainless steel flanges with the FX10 printer, enabling: 

• Weld-ready surfaces with minimal contamination
• Controlled internal structures for reduced weight
• Precise geometry that required almost no post-processing
• Repeatability across multiple builds 

“I expected welding to be a challenge,” Sorum says. “But the printed steel welded beautifully—with clean, consistent results.” 

For a shop that prioritizes weld aesthetics as much as performance, the ability to print a light, strong, weldable metal component was game-changing.

While high-performance exhaust components draw the most attention, GRP also uses additive manufacturing for: 

• Shock clamps that prevent marring on high-end suspension components
• Waterjet toe clamps with enough strength for daily use but soft enough to protect expensive tungsten tips
• Assembly jigs that standardize repeat jobs
• Custom brackets, housings, and templates that previously required milling or outsourcing 

These shop-made tools often use composite materials with continuous fiber reinforcement, delivering aluminum-like performance at a fraction of the time and cost. 

For teams evaluating the operational benefits of automotive 3D printing, tooling is one of the most immediate ROI drivers.

Across GRP’s projects, several themes consistently emerge: 

• Precision for complex geometries and critical alignments
• Speed, enabling printed parts or fixtures in less than 24 hours
• Repeatability, essential for customer builds and multi-vehicle projects
• Lightweighting, made possible through optimized internal structures
• Design freedom that traditional machining simply cannot match 

For fabricators working with multimillion-dollar vehicles — or high-volume shops looking for throughput gains—these advantages compound quickly. Additive workflows don’t replace craftsmanship. They amplify it.

Across the automotive and performance sectors, many engineering and fabrication teams are reevaluating how digital tools fit into their day-to-day operations. As vehicle designs grow more complex and turnaround expectations shorten, automotive additive manufacturing is becoming an increasingly practical complement to traditional machining and hand-built fabrication. 

Shops adopting an industrial 3D printer are often looking to streamline common bottlenecks, whether that’s developing exhaust geometries with tighter tolerances, producing fixtures and tooling that hold up under repeated use, or iterating prototypes without sending them out for machining. The same technology is also beginning to support low-volume, high-value part production, especially when precision and repeatability matter. 

While every shop’s workflow is different, the broader industry trend is clear: additive is no longer limited to prototyping. It’s becoming a dependable part of modern fabrication, particularly where speed, accuracy, and customization intersect.

If your team is assessing how additive manufacturing could support your fabrication or automotive engineering workflows, additional technical resources and expert guidance are available here.