Valve Covers

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

1965 and older U.S. manufactured California Certified vehicles

1967 and older U.S. manufactured Federally Certified vehicles

1967 and older Foreign manufactured vehicle

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

1966 and newer U.S. manufactured California Certified vehicles

1968 and newer U.S. manufactured Federally Certified vehicles

1968 and newer Foreign manufactured vehicle

Is it marine or coast guard approved/certified? No. None of our products are.

Do we recommend it? No, since water and engines don't generally mix and warrantying items in these conditions becomes tricky. These are also modified applications that are not 100% what the systems were designed for.

Will it work? Yes, with some modifications for the WBO2 sensor.

Yes, you just would need to change some settings first in order for it to work.

Please note that damages to the system caused by the use of E85 or other racing fuels are not covered by our warranty policy. This is because E85 is known to corrode certain types of material over time and our systems were not designed for long-term E85 use.

The system is not generally setup to work with stock gauges which is why we provide the handheld to display all the readings. Aftermarket tachometers will work with the system, and we are working to provide support for other popular aftermarket gauges soon!

Aces offers general support on product setup, installation, troubleshooting, and basic diagnostic help.

While most stock-mild applications do not require tuning, some applications (usually more aggressive cams or boosted applications) may require additonal tuning beyond what the self-learn is capable of. Aces does not offer custom tuning though we can recommend Authorized Aces Tuners who may charge a fee for their services. Read more about our support services and what to expect here.

Aces offers general support on product setup, installation, troubleshooting, and basic diagnostic help.

While most stock-mild applications do not require tuning, some applications (usually more aggressive cams or boosted applications) may require additonal tuning beyond what the self-learn is capable of. Aces does not generally offer custom tuning except at our discretion, though we can recommend Authorized Aces Tuners who may charge a fee for their services.