Guides
Brake 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 registrationChanging your vehicle's color — how and by when to report it
All vehicles
You must report a vehicle color change to the vehicle registry within 10 days. No manufacturer approval or inspection visit is needed.
Legal with registrationChiptuning and mass conversion approval — when a power change is legal
All vehicles
The Ministry of Transport approves mass conversions that change engine power and torque. If carried out by a company holding a valid mass-conversion decision, it's legal and doesn't change the vehicle's roadworthiness status.
Legal, no registrationDaytime running lights (DRL) — retrofitting without registration
All vehicles
Cars and buses can be retrofitted with homologated daytime running lights (DRL), provided placement and wiring follow UNECE Regulation No. 48.
Legal, no registrationECE/E-homologated exhaust on a VW Golf — no registration needed
VW Golf
An ECE/E-homologated exhaust on a VW Golf doesn't require registration in the vehicle documents — what inspectors check and what to watch out for.
Legal with registrationIndividual vehicle build and conversion — how to get it approved legally
Special and sports vehicles
An individual vehicle build or conversion approval is often the only legal way in Czechia to operate a sports or special vehicle on public roads.
Legal with registrationLost, destroyed, or stolen license plate — what to do
All vehicles
If a license plate is lost or stolen, it must be replaced with a new one. You can't drive a vehicle without license plates — you risk a fine of up to 10,000 CZK and a driving ban of up to one year.
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.
Legal with registrationRegistering alternative wheels — Škoda Octavia
Škoda Octavia
How to legally register alternative wheels and spacers on a Škoda Octavia III in the vehicle documents — what you'll need and how much it costs.
Conditionally legalSpoilers and body addons — legality and safe installation
All vehicles
A spoiler or diffuser isn't a problem by itself — the issue is sharp edges, insufficient mounting, or interference with the car's safety features.
Legal with registrationSport seats and harnesses — what's legal
All vehicles
Sport seats are a safety component — without homologation for the specific vehicle and the correct mounting bracket, you risk not just failing inspection but real danger in a crash.
Conditionally legalWindow tinting on a Škoda Octavia — what's legal
Škoda Octavia
Tinting the windshield and front side windows has fixed light-transmittance limits in Czechia — an overview of what passes inspection and what doesn't.
Conditionally legalWinter tires with a lower speed rating — when it's legal
All vehicles
Winter tires rated below the vehicle's top speed can be used, but only with a sticker stating the maximum allowed speed in the driver's field of view.