Direct Connection Spoiler
Originally the DC spoilers used plastic push rivets...
But the original DC spoilers are ABS, and fairly thin. The one I have is straight, not warped and only a few pockets were drilled, but a couple of those cracked. I've heard they can be warped and cracked pretty easily from some folks, although they seem a little more durable than that.
Still, the fiberglass versions out there are quite a bit thicker and sturdier, so I would plan on using something a little sturdier to attach them as well. I bought a set of tamper proof stainless torx screws for mine, although I haven't installed it yet. #10x3/4" stainless sheet metal screws...
http://www.ebay.com/itm/10-x-3-4-Stainless-Steel-Tamper-Proof-Security-Torx-Sheet-Metal-Screw-10-Qty-/230972621449?pt=LH_DefaultDomain_0&hash=item35c70a8289
The trick will be not overtightening them and cracking the spoiler, but I think the fiberglass versions will make it harder to mess it up. On the original ABS version the screw pockets sit higher than the lip, so if you screw it all the way down you bow the bottom of the screw pocket out and it can crack.
I also bought a bunch of stainless #10 washers with a neoprene backing to help keep from overtightening the screws. I bought a ton, I may even use one underneath the spoiler at each hole in addition to the one under the screw heads to help strengthen the pocket and make it harder to overtighten the screws.
http://www.ebay.com/itm/10-stainless-steel-Neoprene-washers-packed-in-50-QTY-/230911225946?pt=LH_DefaultDomain_0&hash=item35c361b05a
But I may be overthinking all of that, as usual.
Originally the DC spoilers used plastic push rivets...
But the original DC spoilers are ABS, and fairly thin. The one I have is straight, not warped and only a few pockets were drilled, but a couple of those cracked. I've heard they can be warped and cracked pretty easily from some folks, although they seem a little more durable than that.
Still, the fiberglass versions out there are quite a bit thicker and sturdier, so I would plan on using something a little sturdier to attach them as well. I bought a set of tamper proof stainless torx screws for mine, although I haven't installed it yet. #10x3/4" stainless sheet metal screws...
http://www.ebay.com/itm/10-x-3-4-Stainless-Steel-Tamper-Proof-Security-Torx-Sheet-Metal-Screw-10-Qty-/230972621449?pt=LH_DefaultDomain_0&hash=item35c70a8289
The trick will be not overtightening them and cracking the spoiler, but I think the fiberglass versions will make it harder to mess it up. On the original ABS version the screw pockets sit higher than the lip, so if you screw it all the way down you bow the bottom of the screw pocket out and it can crack.
I also bought a bunch of stainless #10 washers with a neoprene backing to help keep from overtightening the screws. I bought a ton, I may even use one underneath the spoiler at each hole in addition to the one under the screw heads to help strengthen the pocket and make it harder to overtighten the screws.
http://www.ebay.com/itm/10-stainless-steel-Neoprene-washers-packed-in-50-QTY-/230911225946?pt=LH_DefaultDomain_0&hash=item35c361b05a
But I may be overthinking all of that, as usual.
