| GSP ECU upgrade GL550|
|Goodspeed Ecu programming is second to none. Increased horse power and torque in only the start. The GSP software also improves throttle response brining even more than the standard 75% of peak torque at 1000rpm. Increased top speed limiter, improved cooling (fans come on sooner). Increased rev limiter, all combine to create a true performance driving experience.
402 HP @ 6000 RPM; 405 LB-FT @ 2800 RPM