// discreet advisory and service for vehicle modifications
The car you want. Legally, and without a single worry.
For owners who want their car built exactly to their taste — without losing time digging through regulations, parts, and paperwork. We select legal parts, handle homologation, and take care of the registration. You just tell us how you want it to look and sound.
// why it matters
An unapproved modification can mean a failed inspection, a reduced insurance payout after an accident, and a loss of resale value. For a car in this class, it's not worth the risk.
Regulations, homologation, authorities — leave it to us. You don't have to deal with any of it.
No hours spent on forums or reading laws. You get a finished solution.
// how it works
Three steps. You don't have to deal with anything.
Tell us what car you have and what you want to achieve. Brief, no obligation.
We'll prepare a concrete plan: homologated parts, what needs registering and how, an estimate of cost and time.
We'll connect you with trusted partners and an accredited inspection body.
// what we offer
We select the parts, handle homologation, and coordinate both the execution and the TP registration. You don't deal with anything — you get the car you wanted, legally.
A complete legal build plan for your car and goal — parts, homologation status, whether registration is needed, a cost estimate. You arrange the execution yourself.
// why us
We've built our own cars exactly this way — we know which parts carry homologation, and which ones most people never find.
We work from the law actually in force (zákon č. 153/2023 Sb.), not the repealed vyhláška 341/2014 that half the internet still cites.
We work discreetly. You enjoy the result — we handle the paperwork.
// latest guides
OEM performance parts (M Performance, AMG, S line) — when registration is needed
Multiple brands (BMW, Mercedes-Benz, Audi)
Performance and styling parts straight from the manufacturer (M Performance, AMG, S line) are usually easier to legalize than aftermarket — but they're not automatically legal. It depends on the specific part and car.
Legal with registrationBrake system upgrades — discs, pads, sport kits
All vehicles
The brake system is the safety-critical assembly of the car — larger discs and sport kits almost always require homologation and a registry entry.
Legal with registrationLowering the suspension — sport springs and dampers
All vehicles
Sport springs, dampers, and height-adjustable suspensions need homologation or an assessment, and often require a registry entry — what to check and what to watch out for.
Just want to check something yourself?
Describe what you're planning — AI searches the web and answers with sources. For verified data on selected mods, see the guides.
This answer is AI-generated (Anthropic) from a web search and is not legal advice or a binding assessment. Verify with an accredited inspection body to be sure. How we handle your question and IP address.
FAQ
No — from the proposal to the registration, we take care of it for you.
Done legally and registered in the vehicle papers, they're fine — that's exactly why we do it properly.
Depends on scope — we'll give you an estimate right after the consultation.
Yes.
We specialize in BMW, but we're happy to help with other brands too.
// let's do this
Let's talk.
Submitting is free. We'll reply personally with an assessment and a ballpark price; the actual work is a paid service.
Consultation & tailored build
Tell us about your car and what you want — we'll get back to you personally.