The 2011+ Mustang's 6-speed automatic transmission is the stoutest piece Ford has ever put in a production vehicle. TCI Automotive stepped up to the plate and released their new 'power adder converters' that feature a 2500 rpm stall to take advantage of the Mustang's low end torque.
Build your own custom newsletter with the content you love from Street Muscle, directly to your inbox, absolutely FREE!