Early El XR8's were still 165kw. They still had the same crappy High Output intake, the same crappy E7 cylinder heads, the same cam and the same hideously crap exhaust manifold.

The only mechanical difference between all the HO (cough cough) spec engines was in the early 90's the engines were built with factory fitted forged pistons. As for electrical, all of the pre smartlock EB V8's ran a barometric air pressure sensor (same as fox body mustangs with the A9L and A9P ECU's). It's nothing more than a Map sensor with the house disconnected.
With the introducion of smartlock Ford AU ditched the BAP. At the same time in the US the SN95 mustang came out and they didn't have a Bap either. They also had the air intake temp sensor relocated from the base of the #5 runner to the air intake pipe before the throttle body. Something we didn't here until the 98 Explorer V8 engine was dumped into the AU Falcon (the windsor was gone from everything except the F truck and explorer from around 94/95 onwards. Everything else was 4.6 modular).

Now with the late EL V8 and the explorer intake, its different than the AU explorer. The EL still has an EGR port and it still has the intake temp sensor at the #5 runner position. The AU doesn't have EGR because it has fast burn GT40P heads which have no provision for EGR.
The reason the AU with its better heads and intake only makes 10 more kW than almost anything before it is it because it has a smaller cam and matching weak valve springs. You have to remember this engine came from a low revving 4x4/Suv not a pony car like everything before it.