Rossiters will be closing on 30th April 2024, all remaining stock is available via our eBay shop:


Rossiters have been selling Steinbauer performance upgrades for over 2 decades. For cars that are outside the factory warranty period, Steinbauer upgrades offer many distinct advantages compared to software "remaps" or cheap tuning boxes that simply increase fuel rail pressure. For example:

Consistent quality, made in Austria

No black smoke

No or minimal increase in rail pressure

Safe, EGT monitoring

Fuel saving possible

Switchable (switch not included)

Can be removed and sold on after use

Here are some example models that have proved popular with Rossiters customers. For the full range, visit, and ask us for a fitted quote. For most cars, professional installation takes 1 hour and costs £81.00, inc vat.

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Showing 1 - 3 of 3 products
Showing 1 - 3 of 3 products