BMW X3 E83 (2003-2011) RaceChip GTS Tuning Box

Plug-and-play tuning box for the BMW X3 E83 - no coding, no cutting, no guesswork. Delivers up to 30% more power and torque across the rev range, with 7-stage digital adjustment to suit fast-road or track-day use.

• Engine-specific mapping for all E83 X3 models (2003-2011)
• Includes Engine Protect System+ and 2-year engine warranty
• ARM Cortex-M3 processor, Nano-Protect electronics, FCI connectors
• Rugged composite housing built for UK roads and real-world use