Racechip GTS suitable for BMW 3er E90 320d

How does chip tuning differ from remapping OBD tuning?. Chip tuning via a power box works without changing the manufacturer's hardware and software, all the systems protecting the engine remain intact, you can easily install the box yourself, and your vehicle can be restored completely to the factory settings. OBD on-board diagnostics tuning accesses the manufacturer's settings for the engine management and electronics systems, and changes them, usually permanently. Installation generally involves significant cost and cannot be reversed completely. Is RaceChip engine tuning guaranteed to be safe?. Yes-It s simple, tested and safe. The gains from RaceChip tuning are always well within the vehicle s performance reserves. There are no physical changes made to the engine. We only make use of the thermal and mechanical reserves built into every production engine. RaceChip offers a warranty of up to 2 years on the major engine components e. g. turbocharger and ancillary parts e. g. gearbox a