I'm going to be running a prosport water temp gauge and looks like I need to run a coolant hose adapter.

I looked online and it has a variety of sizes. Anywhere from 30mm-42mm

So I was wondering what size the stock AP1 coolant hoses were and if there was a certain brand you guys recommend. Thanks.

 

Bump because I was about to post the same question

 

Was told by Full Blown that it is a 30mm

Hope that helps others

 

30mm is correct, 00-09 hoses are all the same as well.