i am about to purchase one and was curious as to whether it would work with a rotary. it says that it is universal and will work with anything that have 2 to 12 cylinders i was just wondering what everyone thought about these over the apexi safc

 

i dont know about the hks afr, but i have the safc 2 and i am extremely happy with it. it is easier to tune than the original, and attracts attention mountied up on my dash