Carbon Fibre Rear Diffusers - Full Set - £350
The VX220 benefits from a flat floor design which helps ease airflow under the car. However all the benefit of this design is wasted as the rear clam sweeps up from the flat floor thus generating lift at the back. It is this effect (partly) which people complain about on track when they lock the rear brakes in cornering.
Rear diffusers will never generate high levels of downforce (unless they're enormous like on a DTM car) but they can be designed to direct underbody airflow and help reduce lift. Constructed entirely from pre-preg carbon fibre; they are strong, durable and look great on the car. Rear ground clearance is barely affected and they adhere to MOT rules on size. They are a DIY fit as they use existing holes drilled in the clam for the undertray.
where I think it makes a slight difference, not significant but a little bit at very high speed. The context I say this is in; on the nurburgring where there are sections where you are doing between 120-140mph through bends. The only change I had made to my car was the diffuser and it felt a little bit more stable at the rear at those speeds. But we're not talking a big difference, it's definitely not downforce but perhaps a little bit of reduced lift? Either that or my sphincter valve has been taking brave pills.
Given that there are very few places on this planet you can do those sorts of speeds on a bend, then let's call it cosmetic. The MMG 6 fin is a tidy piece that looks mean. The short TaT is the sexiest. I'm also fond of the Jimsan diffuser which I have, but they are a collectors item now.
i was scared doing that on the Autobahn! lol i wont be bothering ha!
Thanks for the info though, i probably will go for the "sexy" TaT one when i've got some spare pennies just for looks.
