Hi Glen , (and others)
Mate that's a good question about voiding the warranty and the definitive answer is - YES , thats right , fitting the PC5 technically voids the drive train warranty.
However I have an extremely good relationship with my dealer ( Bundaberg Motorcycles

).
This is the 5th Harley I have purchased from them and I think last count my 8th bike ( I also like Triumphs

) in 6 years.
When we discussed this issue they said technically the PC 5 voids the warranty , but because I am a long term and regular customer , and because they do ALL my mechanical work etc. they would always look after me.
I made the decision to take their word - they have never let me down in the past - and go ahead with the PC 5 instead of the SE unit . The PC5 gives a lot more options in the future and is easier to set up ( ? )
I will give a big plug now for the team and BUNDABERG MOTORCYCLES

These guys are by far the best dealer I have dealt with ! They follow through with any enquires and always deliver on their promise . Thats been my experience anyway! So this was my personal decision and I am a very happy customer.
Dave
ps pics to follow ( hopefully )