Greatly Improved Shifting

The Weistec Engineering SLS TCU Upgrade for the SLS, SLS Roadster, and SLS GT will match your transmissionu2019s performance to that of the SLS Black Series.u00a0 Shifting up and down in gears will be quicker and firmer.u00a0 The improved shifting also allows for greater torque capacity which is ideal for modified vehicles that make significantly more power than stock.

Tuning Process: How do I get my ECU/TCU tuned?

Key Features:

• Faster Shifting

• Firmer Shifting

• Improved Street and Track Performance

• Increased Torque Capacity