Few Q's for you:

Any increase in SOTP?

Any Increase in MPG?

Is it a plug-and-play design?

Does the provided coil mount where the stock external one goes?

Thanks!

I used it on my 97 LT1 formula to try to get the idle to smooth out and get better mpg and it worked really well. I got 3 mpg out of it and uped my gas milage to 32hwy with the 6 speed. It took me about 8 min to hook up the box including drilling to mount the box. It was really was plug and play install. But I have no experance with the model for the other igintion systems.