What does this note at the end of this lowering spring description mean?

[sir--fox]

Hai guys. Looking at a set of springs for my 1.2. Was gonna get coils but can't justify the cost. Anyway, I found these:

http://www.europerformance.co.uk/pages/products/product_info.mhtml?product=3950872

Now as far as I can tell, they fit my car. It's mk2, ph1, 5dr. That fits into the 'anything but sport / v6' category and there isn't any other option for the car on that sire. But the note at the bottom has left me confused:

Notes: RN2 - For cars with coil springs fitted all round +RN6 - SP kits will not fit the 1.2 model

So, having no idea what RN or SP is, any help?

As far as I know I can drop it without getting new shocks and without killing the handling?

 

[mat-nos]

ring euro performance and ask, they are v helpfull.
just spent £400 with them.

 

[Jordi17]

yep