Engineered To Out Perform Everything
SERVICES
3D Scanning
3D Scanning & Measurement: High-resolution scanning of vehicles, components, and assemblies for precise digital capture.
Metal 3D Printing / Composite 3D Printing
Production-grade parts in aluminum, Inconel, titanium, and stainless steel, ideal for motorsport-level exhaust components, brackets, intakes, structural pieces, etc
CAD Engineering & Product Development
Full digital design workflows — from concept to production-ready models. Reverse Engineering using scan data to rebuild or redesign parts, housings, ducting, brackets, aero, and mechanical components with exact fitment.
Featured Products
The Rival Autohaus X-Pipe is metal 3D printed from 304 stainless steel and designed around a true X-merge geometry to improve exhaust scavenging efficiency. The central intersection allows exhaust pulses from opposing banks to converge and assist one another, promoting balanced pressure distribution and increased gas velocity while minimizing pulse interference.
The optimized internal geometry supports smooth flow characteristics across the operating range, contributing to consistent exhaust behavior and improved throttle response. Additive manufacturing enables precise control of the merge profile and internal transitions that are not achievable through conventional fabrication methods.
Available in multiple diameters to accommodate varying engine configurations and power levels.
These step headers are fully engineered and manufactured using metal 3D printing in 304 stainless steel, developed specifically for the Porsche 964 platform to optimize exhaust flow, pulse timing, and thermal stability.
Each primary runner features a step-header architecture designed to maintain exhaust gas velocity as volume increases, improving scavenging efficiency across the RPM range. Equal-length runners ensure consistent exhaust pulse timing before merging into a precision-engineered collector tailored for the 964 engine layout.
Metal additive manufacturing enables complex internal geometry, smooth internal transitions, and repeatable dimensional accuracy beyond traditional fabrication methods. The result is a structurally uniform, high-temperature–resistant header system designed for motorsport-level performance and OEM-grade fitment on the 964 chassis.
Designed, printed, and finished in-house for uncompromising quality.
Our Porsche 964 tips are metal 3D printed in 304 stainless steel to deliver a true OEM-plus appearance while supporting custom rear section exhaust configurations.
Designed for owners who want to retain the factory 964 look, these tips slim fit over 2.5” to 3.0” exhaust tips, allowing modern or custom exhaust systems to visually integrate seamlessly with the original rear valance.
Each piece is CAD-engineered and digitally manufactured for precise fitment, clean edges, and long-term durability. The slim-profile design maintains proper clearance while preserving the classic factory proportions of the 964.
Built from Passion. Refined by Precision
We don’t just design cars — we build them. Our concepts evolve from digital renderings into real-world widebody conversions, aero components, and precision-manufactured parts. Every detail is engineered, fabricated, and executed in-house.
Porsche Project 991.2 Turbo S
348 Ferrari Project
Metal 3D Printed Porsche 964 Exhaust System
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Contact Us
Interested in working together? Fill out some info and we will be in touch shortly. We can’t wait to hear from you!
Rivalautohaus@gmail.com