Installed Direct Connection chin spoiler...flex???
That looks like the taller version of Randy's spoiler. I have one for my GT and its definitely not that tall. They're nice pieces, but, this is my OER spoiler for a '67 Camaro. It was $30, and with a center brace to the radiator support it's more than sturdy enough. It's an ABS plastic, so if you curb it or something it would crack, but for $30 it's easy and cheap to replace, and I know it will fail before it damages my valance. The Randy's spoiler will dent and deform if you hit something with it, and it could transmit enough force to damage the valance as well.
Also, keep in mind that a chin spoiler isn't supposed to create downforce per se, it's to limit the amount of air going under the car. Air going under the front of the car creates lift at high speed, causing that light feeling you get at high speeds in these cars. Preventing lift and creating downforce are not the same thing, and while a larger front spoiler would be more effective, less air going under the nose of the car is a good thing, even if it's only a small amount. Ideally the spoilers would be wider to keep more air away from the spinning tires, as that changes how the air behaves under the car as well. But, even though the improvement may be small, it's still an improvement. Coupled with an effective rear spoiler (not a cosmetic one like a go wing), even a few small improvements can make a difference. Somewhere I read that the DC rear spoiler for Dusters/Demons/Dart Sports actually resulted in slightly faster lap times during road course testing, but I'll be darned if I can find where I saw that. I wish I could find it again, or more info on their performance in general, because most of the information on their results is anecdotal.
That looks like the taller version of Randy's spoiler. I have one for my GT and its definitely not that tall. They're nice pieces, but, this is my OER spoiler for a '67 Camaro. It was $30, and with a center brace to the radiator support it's more than sturdy enough. It's an ABS plastic, so if you curb it or something it would crack, but for $30 it's easy and cheap to replace, and I know it will fail before it damages my valance. The Randy's spoiler will dent and deform if you hit something with it, and it could transmit enough force to damage the valance as well.
Also, keep in mind that a chin spoiler isn't supposed to create downforce per se, it's to limit the amount of air going under the car. Air going under the front of the car creates lift at high speed, causing that light feeling you get at high speeds in these cars. Preventing lift and creating downforce are not the same thing, and while a larger front spoiler would be more effective, less air going under the nose of the car is a good thing, even if it's only a small amount. Ideally the spoilers would be wider to keep more air away from the spinning tires, as that changes how the air behaves under the car as well. But, even though the improvement may be small, it's still an improvement. Coupled with an effective rear spoiler (not a cosmetic one like a go wing), even a few small improvements can make a difference. Somewhere I read that the DC rear spoiler for Dusters/Demons/Dart Sports actually resulted in slightly faster lap times during road course testing, but I'll be darned if I can find where I saw that. I wish I could find it again, or more info on their performance in general, because most of the information on their results is anecdotal.