I used 2" thick closed cell polyethylene foam sheet from Grainger for its water resistance. It's easy to cut into strips but not very compressible so took a few tries to get them just the right size. Grainger has other foam material options if you want something more pliable.

 

Ok just did mine with an N-flo koyo on a JDM FD. Omg I hated everything doing this install. And so pissed I bent some fins during install. Long story short, my bottom brackets were still good, allergic I bought spare, since first time up nothing fit... fuse box, smic, etc. But I went back and flipped that AC bracket and it didn't flip radiator brackets and it worked. I didn't try without flipping Ac with unflipped rad brackets, because I was already annoyed. Needless to say my ac bracket needs modification to bolt in because it wont line up with screw maybe if a mate held it down it might work. But i zipped tied it until I have patience to take apart again.rad is in. Bleeding air. Taking forever but yeah

 

Thank you Chris, your help is invaluable , you're the best 'tool' in my FD kit!

Best, Steve

 

Does anyone have issues with the IC duct and this AC piece not fitting anymore? The Koyo radiator and fan fit in pretty easily with no major issues once I made the modifications

 

you installed it wrong. install it correctly and you will not have those issues. its well documented how to fit that radiator

 

It doesn't look like the top of the radiator is even close to the top mounting points. You need to lay it down further so the top mounts make contact with the mounting points on the chassis, and you will probably have to remove the small mount spacers so the duct properly fits.

 

Question,
If I want to install the R2 dual oil cooler system (which I have sitting in my garage) what all needs to be removed to install the lines and RH cooler? Does the radiator and condenser need to be removed (hope not, I already did this Koyo radiator upgrade!) to install the lines, etc?