We have a range of 4 different sized alloy funnels sold in pairs and availalbe in 3 colours: polished silver, blue and red. These funnels are designed to be mounted externally on the vehicle.
The idea is to attach flexi ducting to the back of the funnel using a fixing clip and then direct cold air to where it is required, either to the air filter or air inlet or to the braking system. Directing cold air to these areas can increase performance. Simple to fit.