I just looked it up on the parts site I use, you're right I showed 2 for 2002 model but for mine it only showed one, both years had same part number and same engine. So I'd just go with one.
By test ports, do you mean the 2 90 degree elbows on the right side of the throttle body? If so, you can get new vacuum caps at a parts store, I just connected the 2 ports with a piece of vacuum hose, it does the same thing
Wrapped RPW Slash pipes
K&N air filter