For 3.8, 4.6, and 5.0 cars you can expect -
 
-rev limiter raised to 7200rpms (TCU tune may be needed to take advantage of higher RPM limit)
-2 step (3.8)
-pops/bangs/crackle on deceleration
-SHOW tunes are compatible with 87-93 octane fuel
-GO tunes are compatible with 91/93 octane fuel
-CUSTOM tunes are compatible with 91/93/E85 fuel
 
Your factory warranty will be void upon loading a tune from any aftermarket company and Alphaspeed is no exception.
 
Pay close attention to pricing info. Prices may change depending on options chosen for your configuration.
 
Please note that all sales are final for all tuning services and/or ECUs provided by Alphaspeed Midwest. Deposit payments can be made HERE to start your appointment process if opting for an in-person tune. Full payment is required prior to any ECU tune or modification. Professional removal/installation of your ECU is recommended if you plan to mail in your ECU or are purchasing a spare: working with your vehicle's wiring and powertrain/drivetrain management system requires specialized training and experience. Some listed features may not be applicable to each specific year/engine/transmission. Alphaspeed Midwest is not responsible for damages incurred to your ECU, vehicle, or vehicle components due to inappropriate installation.