About us

About Micarja Racing

A Porsche tuning specialist driven by engineering, not hype

Micarja Racing was founded with one clear belief: a true Porsche tuning specialist does not chase numbers or trends. We focus on engineering, balance and longevity. Every Porsche 911 we touch must remain recognisable as a Porsche — only sharper, more capable and more individual.

Based in Haarlem, the Netherlands, Micarja Racing operates internationally. We design and build coachbuilt Porsche 911 conversions for clients who expect OEM-level quality, functional carbon construction and a coherent technical concept.

From refined OEM+ upgrades to full carbon widebody Turbo S builds, our work is guided by real-world use: Autobahn stability, mountain-road confidence and predictable behaviour at speed.

What defines us

Independent. Technical. Precise.

We are not tied to a single supplier or tuning philosophy. Each build is specified from scratch — turbo system, cooling, ECU strategy, suspension and aero must function as one system.

This independence allows us to create cars that feel composed and trustworthy, even at sustained high speed — not just impressive on paper.

Our philosophy

Why engineering always comes first

Modern Porsche 911 models are highly developed platforms. Adding power without considering airflow, intercooling, drivetrain protection and braking leads to compromised results. As a Porsche tuning specialist, we approach each project as an engineering exercise — not a software upload.

We prioritise:

System balance

Power, cooling, suspension and aero must work together.

OEM-level integration

Factory-style fitment, mounting points and finish quality.

Real-world usability

Cars built for roads, climate and regulations — not dyno rooms.

Background

From passion to international specialist

Micarja Racing grew from a deep-rooted fascination with Porsche engineering, motorsport and design. Over time, this evolved into a focused operation specialising in bespoke Porsche 911 builds with a clear identity.

Our clients range from European enthusiasts to collectors in the Middle East and North America. Some arrive with a donor car, others ask us to source a suitable Porsche 911 through our independent broker network.

Whether it concerns a refined OEM+ upgrade or an extreme Turbo S widebody, our approach remains identical: plan first, build once, deliver correctly.

Key milestones
Focus on Porsche 911 platform Specialisation in Turbo, Turbo S and GT models
Introduction of carbon widebody concepts OEM-fitment prepreg carbon development
International export projects Europe, Middle East and North America
Signature builds THOR, MRTS and limited coachbuilt concepts
Compliance & export

TÜV, RDW and market-specific planning

Many clients approach us because they want a fast, distinctive Porsche 911 that remains usable and registrable. We support planning for RDW (Netherlands) and TÜV (Germany) where applicable, and advise early on what is realistic within a specific legal framework.

For export builds, we account for climate, fuel quality, documentation and transport logistics. This ensures that a Micarja Racing build arrives ready to be enjoyed — not adjusted after delivery.

Reference authorities: rdw.nl · tuvsud.com

Work with us

Discuss your Porsche 911 project

Looking for a Porsche tuning specialist who treats your car as a complete system? Tell us how you drive, where the car will be used and what you expect — we’ll translate that into a clear technical direction.

Micarja Racing
Engelandlaan 524 · 2034 NR Haarlem · The Netherlands
Email: info@micarjaracing.com · Phone: +31 6 5464 8002