488 Forza valve controller in 488 GTB

An abundance of posts on this topic. Roughly a 50/50 split; controller vs. simply unplugging the bypass valves. I choose the latter and couldn't be more pleased with the result.

 

I have personally installed it on all of my f-cars and love it. It definitely makes a bigger difference on stock exhaust. Aftermarket exhaust not such a noticeable difference. And as far as quality goes, l give the Forza an A+.

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Forza controller is the best mod you can put on a 488 period. Don't hesitate just get it on.