I also have a pretty badly chipped front aerokit I bumper on my 2001 lapis blue metallic Boxster (110k+ miles)
I noticed the aerokit parts have good color match and all, but not as high quality clearcoat as the factory original paint. (I think the aerokit is a dealer installed option... and so I figure they were painted separately from rest of car, and with different materials - at least the clearcoat. Same for rear bumper, rear deck lid, and sideskirts, but those are subject to much less rock chips than the front bumper, with the exception of the side skirts near the wheel arches, which are in far from perfect shape)
My action plan is touching up and polishing the hood and front fenders where there are a few chips but in good quality original paintwork, and eventually removing and prepping the front bumper (considering stripping the old finish off, but not sure if worth that much effort) and getting it resprayed end with a top quality, most durable finish. (Especially including a good, durable, 2-part polyurethane clearcoat)
Rear fiberglass decklid also has much more noticeable and severe orange peel than rest of car. Considering a bit of wet sanding or surface leveling polishing, but not sure how thick paint is for it. (Need a very high end/expensive paint thickness gauge to work on fiberglass!)
For touching up, I've been using the oe Porsche touch-up paint, and found a very satisfactory color match. (All touch up paint seems to be quick drying lacquer, and Porsche's is no exception.) Going to try leveling with a carpro denim pad, then a polish, but haven't gotten to it yet:
http://www.amazon.com/CarPro-Denim-Orange-Peel-Removal/dp/B00B1E43YS
Hybrid Mode
