I have a 2000 Hyundai Elantra and I'm making my own CAI from exhaust tubing, can anyone tell me how big of a hole I need to make for the Intake Air (IAT) Sensor. (I don't have the tools to make it, so the guy's at work are going to drill it for me to the exact size). Thanks For Anyones Help?

 

Measure the hole on your stock ait box. make sre you use the original gromet inthe new CAI piping.

 

Well that is what I thought of doing, But I was afraid if I took the sensor off the stock airbox, That I wouldn't be able to reattach it. I'm not doing the actual assembly until this Sunday.