Not sure if this is the right place to post this but looked long and hard at which section this should be so mods move it if it's in the wrong place.
Have been trying to work out which is the most effective rear boot / trunk spoiler for the twins to help at high speed .
Would a duck bill or integrated trunk spoiler be as effective as a bridge spoiler or would either be better with a rear diffuser added as well
Looking for input from people who have tracked their cars or have real knowledge in this area .