Let's consider some of the claims....
1) Improve Car Stability at least 40% & above -
really? 40%? I rather doubt its THAT good2) Reduce Under steer -
not sure how, as it doesn't change any of the geometry3) Improve Braking Performance -
possibly, if you accept that there's some body flex under braking4) Reduce Body Roll -
no it won't5) Improve Sharp Cornering -
yes, definitely6) Improve Safety Aspect & Comfort -
not really7) Improve Handling Stability -
yes8) Highly Recommended for Street, Track, Drift, Rally, Autocross, Gymkhana, Drag Racing and etc -
because Coupes are famed for their drift, rally, autocross and gymkhana activities... I also wonder about the design - the significant 'U' shape will allow the brace to flex far more than one than connects the two suspension turrets via the shortest route
I'd recommend going with the proven Sparco designs