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Well I had issues with power steering and part of the comprehensive diagnosis was to check the Amp current and so, I reached the colocalisation that the OEM alternator is rubbish and barely
can even cope with OEM demands.
For battery, I am using EFB as I am not willing to mess with the basics of the system to have AGM or another type of battery.
So all sorts of self-regulation, self-exciting self-working alternators are ruled out.
I had had a fair share of searching until I found this product, which made me able to keep my OEM charging system.
Based on my use and engine RPM, I went with LMA620-MHO 'Square 2 Pin' 250A which gave most of power on lower PRM in comparison with 320A which needs more rev to produce the same.
Price was over £900 is not cheap by any means, 320A is around £100 more but really needs to rev to shine,
Installation was not as straightforward as I had anticipated as the PCV pipe almost hit the alternator housing, need to say the serpentine belt I receive is a tad longer than OEM which doesn't help either.