[jevvy]

I dont think that crush will affect flow to the extent it would be hindering cooling too much.

Could you have an airlock between the 2 front coolers - do they both get hot?

I have a 3.6 and just 1 x 3.2 cooler up front which just about copes on hotish trackdays. To try to help things I have removed the fog light and bracket from the valance and also made an under tray to force all the air through the cooler - I also removed the side markers similar to you but I think this made things worse as the air was spilling out there rather than forcing more in. I have a spal fan fitted right up behind the headlight bucket(as to not obstruct the fig light air into the cooler) but that only makes any difference in stationary traffic. Last tweak to improve the cooling was to open up the slats on the cooler guard in the wheel well - I used a large adjustable spanner closed up on the slats top open them up to just not allow any stones through but to give the air from the cooler a straighter exit path.

When pressing on during trackdays I can get it almost to the 2nd white mark at which point I do a few slower laps then build back up. I want to get a bit more cooling so I would expect your setup to cope quite well.