Originally Posted by aus
I've posted this before, and don't know why people don't use it.
This is by far the most cost effective and easy way to protect the nose of the car during track events. It's about $170.
Then I add some clear shelving paper for the headlights and maybe side view mirrors.
I can think of a few reasons
1- edges can flap in the wind and damage the paint
2- dirt and debris can get under it and damage the paint
3- it restricts air flow to the center radiators.
4- it's ugly
'04 E46 M3 - Jet Black - Sold
'08 E90 M3 - Alpine White - Sold
'13 E92 M3 - Silverstone II - Sold
'13 E92 M3 - Alpine White - Ohlins TTX, AP Racing BBK, Cobra Seats, Akrapovic GT4, BBS E88, Volk TE37, OE GTS - Aero, 1/2 Cage & Seat Delete