When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
just noticed you dont have the two plastic bits on the bottom grill in the bumper, is this for a reason?
In my german car book it stated if car is too being runn for a long time att top speed or you are loocking at hig teprature - you are too remove the too bits .........
I would have said they where there to direct more air into the middle of the bumper as there are no rad's or intercoolers behind them even if you have an RS500 cooler. However directly behind them is the brake ducts holes (which also have blanks) so they could be removed if you where channeling air to the brakes as per the rally cars (homogolation)
in std form there should be 2 ducts either side that aim ait in the rad , the plastic inserts can be removed to allow the ducts to work. think it was encase you bought the car to track it .... or just run a super cool cossie .... think there useless after a RS500 item is fitted tho as i removed mine anyway