Launching soon

Sound and power. On road and off it.

We build audio systems you can hear and feel, engine ECUs that give old 4x4s a second life, and off-road accessories tougher than the trail.

Three things we do well

Every product is specified, built and tuned for a specific vehicle, room or trail. No catalogue compromises.

Audio

Car & home audio systems

From clean sound in your daily driver to setups that shake the garage. At home: stereo and home cinema matched to your room's acoustics.

  • Speaker, amplifier and subwoofer selection
  • Sound deadening and clean, invisible installs
  • DSP tuning for the listening position
Custom-built

ECUs for older 4x4s

Engine control units designed from scratch for classic 4x4s and off-road vehicles whose factory electronics stopped keeping up long ago.

  • Fuel and ignition maps for your engine and hardware
  • Built to handle water, mud, vibration and heat
  • Compatibility confirmed individually before you order
Trail

4x4 accessories

Gear you fit and forget, until the day it saves your trip. Works on vehicles without our ECU too.

  • Lighting and auxiliary electrics
  • Protection, mounts and brackets
  • Winching and recovery accessories

How we work

Short, to the point, and no surprises on the invoice.

Talk

Tell us what you drive, what you listen to and where you're headed.

Design

We pick the components and give you a clear quote.

Build

We install, program and test, off-road included.

Support

Tuning, map updates and service after handover.

Got a project? Get in touch.

Our online shop opens soon. Until then, we take enquiries and custom orders by email.

kontakt@4off.pl