The Evo Sport pulley underdrive kit is designed to help Evo drivers get an extra boost from their turbocharged engines.

In other words, unless you have a turbocharger or supercharger, you will see no performance gains.

Are you going to swap in an Evo Sport engine instead of the MB blown four-banger? I think at least one other board member may have tried a JDM engine swap in the past.