BMW Tuning Boxes – eBay UK Best Sellers
For BMW models with a turbo engine from the factory only. If your engine is using the original parts and/or it is still under warranty. A tuning box is an easy way to get a power boost while reducing or eliminating the effect on the BMW warranty.
Please note. Tuning boxes only work with engines with a turbo from the factory. We do not recommend tuning boxes for engines without a turbo from the factory.
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