Expanding on an earlier thread, here are photos of the 981 front brake duct and (what the 987 didn't have) rear brake duct. BTW, the 997 GT3 front ducts still look to be an improvement over the stock front 981 ducts since they are more sculpted to direct airflow to the rotors, but it doesn't look like they'd be an easy replacement. 981 owners would likely be better off waiting for the 991 GT3 ducts.
I explored the 981's effective looking rear ducts and they may be adaptable to the 987. However, they would require some plastic cutting and likely zip ties since the control arm goes through the duct. I plan to investigate further when the weather is warmer.
Front Brake Duct
Rear Brake Duct
I explored the 981's effective looking rear ducts and they may be adaptable to the 987. However, they would require some plastic cutting and likely zip ties since the control arm goes through the duct. I plan to investigate further when the weather is warmer.

Front Brake Duct


Rear Brake Duct