4H-TECH started as a company back in 1997 under the name: Mathijssen Technics. We did specialize in engine conversions for Opel (Vauxhall) Corsa. Our mission was to get as much possible power from an as light as possible car. Fitting a 350+ hp tuned 2.0L Turbo engine from a Calibra into the small engine bay of an 750kg Opel Corsa for example, was very easy to do with special parts we developped. In a short time our well known engine conversion kits for the Opel corsa became the best selling engine conversion kits in the world.
A few years later we expanded our bussiness for the entire Opel and Vauxhall range, from Astra to Zafira. The website www.opel-tuning.nl gets more then 4000 unique visitors every day.
The latest developments are our 4H-TECH Short Shifter systems, which are completely developped, testet and manufatured by us. Made in the Netherlands. We spend much time in fine tuning these special linkages.