does any 1 kno the diameter in the inlet or hot side on the srt- 4 intercooler

 

the neon srt-4 or the caliber? I actually have one sitting in my garage, but i haven't measured it (for the neon)

 

2.5" coupler will fit on it just fine as I used one on my Integra. It's actually oval shaped, comes out straight back from the caps towards the engine and is angled upwards or downwards depending which way you mount it.