VA V-Rod it is very simple to tell if yours has the kit installed. The 02 from the factory has no IAT sensor in the upper air filter housing.
Unless you run the 16gauge pipes HD said it was not needed however the current location of an 02's sensor can not produce accurate information since it is inside the front intake runner already getting heat from the engine. The IAT should measure air temp not engine temp. Keep in mind that if you make the change that a new flash is required for the bike to be right but before I did my reflash I could tell no difference.
I got my kit from chopper steve and it was around 60 dollars total.
The only difference is in the air fuel mixture. Since the IAT sensor gets a more accurate temp reading it allows a better air fuel mixture. I think the biggest factor comes in on hot restarts when the IAT sensor will heat soak in the head and give a very lean mixture for the first few miles.
I ordered and received the IAT sensor with the new air box top cover but the instructions are missing , my luck . Does anyone happen to have them that could send them to me or post it ,sure would be helpfull.
I have an 02, got the new IAT sensor located in the upper airbox cover. Now that I'm running topless, I zip tied the sensor lead to one of the spring clips. Thus leaving the actual sensor a few inches from the SE air filter, no engine heat will effect the sensor reading regardless of engine temp in this location
the easiest way to tell if you have the 'old' or not is to look on the right side of the engine, just ahead of the coolant pump. on the head. The '02s had the IAT sensor mounted right there on the intake port runned as Max stated. It's very easy to see. The H-D relocation kit came with a new IAT sensor and you left the old one in the head, just unplugged.... with the wires now running up to the newly installed IAT. If you find that sensor there ('02 models only) you need to leave it there or make provisions to fill the hole in the head where it mounts so there won't be an intake leak.