Bring your S38B35 to life with this fully tuned, daily driven, and track tested performance chip. The SSSquid Tuning performance chip is the most complete tune on the market, with every aspect of the mapping being optimized from idle to wide-open-throttle.
This chip is compatible with:
- 1986-1987 E28 M5 – Canada, Japan and USA
- 1986-1988 E24 M6 – Canada, Japan and USA
- 1987-1989 E24 M635CSi