I do not like the look of the mesh grill cover on the SL nor is the color match as good as the Colgan.

My C6 has a Colgan bra that I like better than the SL. I used a Speed Lingerie on my C5 on and off for 6 years without the slightest problem to the car's finish. I suppose that if you don't take proper precautions when using any bra, you will not be satisfied. Forget what other people tell you you 'should' do or not do, It's your car, make it into what you want! The bra/no bra, black/Speedllingerie/nylon/3M is a matter of how you want the car to look with it on, whether rock chips bothers you, whether you tend to tailgate gravel trucks, etc. But I'd not skin the whole front with 3M. I'd do the headlight covers on another car in a heartbeat and probably do the hood. I spent $500+ for the 3M kit on my '06 early this year. If you let go better duck! But like many other things, it gets easier after you've done it a few times and pretty soon it is routine. Honestly: the first time on/off is a bitch! On the bottom lip of the airdam the elastic straps have a lot of tension.hard to hook them while keeping that tension. When I washed the car of course the bra comes off, I put wax on the front (at least), and vacuum the edge more thoroughly before I put it back on. On my '05 I loosened the top edge and used a vacuum on it for 10-15 seconds. It fits like a tight glove, but it doesn't protect the hood. The GM bra fits so snugly it doesn't let stuff under it easily and also it isn't slipping and sliding on the car to grind anything in.

Click to expand.You can't let grit remain underneath the bra.

Webshots bra