I have the Pettit ECU. Wanted to upgrade to the Unlimited. Is it worth the extra $100 or so? Anyone know of the advantages over the regular ecu?

Does the unlimited involve changing 1 eprom chip or 2 eprom chips inside?

 

One chip but only useful if you have a second fuel computer and larger injectors to run more than 14.5lb of boost.

Other than that stay with the STD Pettit ECU.

Later, Jeff