This module is a factory performance upgrade ECU for 1987 model year 2.2 Turbo II powered Dodge and Shelby/Dodge cars.
 
Stage II Mopar Performance logic module fits the following vehicles and requires no other modifications:
 
1987 Daytona Shelby Z (with Turbo II powertrain option and 5 speed transmission)
1987 Shelby CSX
1987 Shelby Lancer (fits both the manual cars and the automatics)
 
Mopar Performance Stage II modules provide a more aggressive spark advance schedule which results in increased horsepower and torque by optimizing fuel and ignition timing curves. These modules require 91+ octane fuel.  It is also recommended to install a 180°F thermostat, and aftermarket exhaust/intake upgrades to realize its full potential.
 
They are designed for simple plug-and-play installation and are a direct bolt-in replacement for your factory logic module.  Factory horsepower for a Shelby CSX, Shelby Lancer, and 87 Daytona Shelby Z with turbo II engine is 174hp. 
 
This module increases that figure to 200hp and 220lb/ft of torque.  You will also notice a marked improvement in part throttle response, and a peak boost increase to 14psi.  This is, hands down, the single best upgrade you can do to your Shelby/Dodge vehicle.