Best electric cutouts?

I'm using 3" oval exhaust so my options were somewhat limited. I ended up going with Summit's kit. I tested them and they fully open and close in less than 10 seconds when using a relay.

Not sure about durability yet as the car is still being built. But they feel like good quality. Decent machining and good switches/wiring.

Summit Racing SUM-670103 Summit Racing™ Oval Electric Exhaust Cutouts | Summit Racing