The rear spoiler is not 1x1. I am looking at one in person now. It has a larger weave than the roof, similar to a 2x2. Same goes for the OEM mirror covers. All of JL-motoring's products in general have pretty good fitment as reported. They are not perfect like OEM, but great for the $. Well worth the money and savings over OEM.
Jet Black / Gloss Black Grilles / 8000k D1S low beam / 6000k HID fogs / GP Thunder 8500k angels & cornering bulbs / black reflectors / gloss black vinyled window trim / tints / smoked rear turn signals / black roundels / AC Schnitzer roof spoiler / VRS style decklid spoiler / Matte black Stripes / Rear fogs / matte mirrors / 19" LM reps / APR lip