How did you get it pre ordered beforehand? I thought pre-orders opened up Jan 11th.
I’ve read that the water cooling adapter screw holes need to be drilled out a little bit so you can line it up with the studs on the FK8 turbo. One of the coolant lines is for some reason a little thinner on the Accord adapter. An alternative solution which I’d recommend is use the cooling adapter designed for the FK8 turbo and just get a barbed reducer and 90° hose piece that fits the larger diameter. The smaller side of the reducer will connect to the hose going up to the engine block.
Here’s a post Hondata put together:
www.hondata.com
If you don’t want to cut your upper heat shield you can just get the FK8 one for like $20. You’ll also need a compatible downpipe. PRL and RV6 both make down pipes that relocate the O2 sensor to the FK8’s stock location since Accord’s have it on the Turbo. Or you can even get the OEM FK8 catted downpipe.
A YouTuber also had issues with his electronic wastegate making contact with the Accord’s stock inlet pipe and he dremeled a bit of plastic off. I haven’t heard of any other people running into the same problem. But one possible solution would be getting a P2R thermal gasket to put between the stock inlet pipe and turbo as a buffer. Don’t quote me on this one, but it could work if the inlet clearance thing is common. Or just buy the FK8 stock inlet and drill a hole into it to bring in a vacuum line the stock Accord inlet has (this vacuum line might not be necessary). That seems like more work and money getting a FK8 inlet pipe but it might also add some performance benefits.
I saw on PRL’s P600 listing they said it works with the Accord with “Install Kit or Modification” they haven’t specified on what the “Install Kit” includes. It might have some bits and pieces that make the installation a lot easier.