I had the PAIR line blocked at the union between the PAIR and airbox to eliminate decel popping from the Yoshi TRS exhaust. I decided to go the whole hog, so bought a PAIR blockoff kit from Metrick Metal (www.metrickmetal.com). This comes with a pair of nicely polished blanking plates, fasteners and a resistor to replace the solenoid. This pic is of the Metrick Metal kit, which is nicely made.
The biggest challenge was undoing the allen head bolts on the PAIR covers. Hard to get to and I ended up cutting down an allen key to get access.
The best bit is it tidies up the top of the engine and makes plug changes and removing the cam cover far easier.