Need to breath more life into your engine? Add a TMS Performance Chip! These chips were tuned by Jim Conforti on the dyno to maximize the engine's efficiency when using 91 octane gasoline. The result is more horsepower and better torque - especially in the mid-range of the RPM band. The car really feels more alive!

For the E30 325i/is/iX 1987-92, we need to know the precise year, model, ECU number, and if the car is a manual or automatic.