[A4] rear springs

[Peter Kirby]

I discovered a broken rear coil spring on my A4 (OEM sport suspension). 
  I ordered replacement springs from Chris @ force5 who assured me they 
were from a sport suspension A4 (same year-- 2001).  I take the old 
strut off the car and compare the new spring to the old one.  The new 
one is a full coil (about 2") longer but has the same coil and wire 
diameter as the original.  If the new one has the same coil and wire 
diameter as the original, would cutting a coil off result in the same 
spring factor as the original?

Thanks.

Peter