Bring your M20 to life with this fully tuned, daily driven, and track tested performance chip. The SSSQUID 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:
- 1977–1982 E21 323i (stock ECU not able to be tuned)
- 1982–1984 E30 323i (stock ECU not able to be tuned)
- 1984–1987 E30 323i
- or any other vehicle running the M20B23 engine
++ Denotes modification-specific limits. We will recommend a rev limit based on your engine modifications, but it can also set according to your request!