Air-Cooled Purism. Zero Compromise.

We do not simply preserve history—we re-engineer classic Porsche 356, 911, and 930 models to original factory perfection or elevated mechanical transcendence.

140+ Full Builds Delivered
100% Matching Numbers Precision
35 Yrs Air-Cooled Expertise
Vintage Porsche handcrafted interior work
Chassis No. 911 360 0892 1973 2.7 Carrera RS — Full Restoration

Master Craftsmanship & Mechanical Mastery

01 / RESTORATION

Nut-and-Bolt Restoration

Complete tear-down to bare metal. Every component is ultrasonically cleaned, magnetic particle inspected, and restored using period-correct materials and NOS Porsche factory parts.

  • Celette jig chassis alignment
  • Cathodic dip coating (KTL protection)
  • Concours-grade factory paint matching
02 / ENGINEERING

Air-Cooled Engine Rebuilds

Precision blueprinted flat-six and four-cylinder engines. Built for exacting period accuracy or enhanced power delivery with modern reliability upgrades.

  • Engine dyno tuning & break-in
  • Bosch MFI & Weber carb calibration
  • Magnesium case machining & sleeving
03 / SADDLERY

Bespoke Upholstery & Cabin

Period-exact leather, houndstooth, and Pepita cloth tailoring. We reconstruct classic cockpits using original specification German hides, square-weave carpets, and restored instrumentation.

  • Original VDO gauge overhaul
  • Hand-stitched leather dashboards
  • Period Becker radio digital conversions
04 / SPECIAL PROJECTS

Sports Purpose & Outlaw Builds

Bespoke hot-rod air-cooled creations inspired by period factory race cars (RSR, ST, IROC). Lightweight panels, tuned suspension, and custom gearing tailored to individual driver specification.

  • Mechanical fuel injection tuning
  • Custom Bilstein valve dampening
  • Ultra-lightweight bodywork engineering

Endorsed by Discerning Collectors

“

"Werkstatt IX restored my 1973 Carrera RS to exact factory standards. Their attention to minor details—down to the correct zinc plating on every screw—is unmatched anywhere in Europe."

Henrik von Berg
Zurich — 1973 911 Carrera RS 2.7
“

"The air-cooled flat-six engine they built for my 930 Turbo produces flawless linear power while maintaining complete period original aesthetics. True mechanical purists."

Julian Vance
London — 1978 Porsche 930 Turbo
“

"Commissioning an Outlaw build with the team was the most transparent restoration experience I've had. Uncompromising execution from structural jigging to final hand-stitched leather."

Marcus Sterling
Monterey — 1968 911 Sports Purpose

Begin Your Project

We take on a limited number of full restorations and major engineering projects each year to guarantee absolute perfection. Consult with our head engineers.

Workshop Location

Werkstraße 9, 70435 Stuttgart-Zuffenhausen, Germany

Direct Contact

inquire@werkstatt-ix.com
+49 (0) 711 911 0930

Facility Hours

Mon – Fri: 08:00 – 18:00 CET
By Appointment Only