please help with ignition wires and plugs

[aaaruss]

ok, so here is the deal,
i have 2 sets of brand new ignition wire sets from 2 different manufacturers. the car is 2000 c280 sport. one set is BERU and on the metal end of the wires there is a resistance value of 2.2 kOhms. the other set is KARLYN, and on these wires the resistance reading is 1 kOhm. Both came with Bosh spark plugs Bosh FR8DPP33. Supposedly, both wire sets are for this car. Now originally the spark plugs were non-resistive, F8DPP33, but Bosh changed them to resistive ones. Now, I am confused on to which wires i should use. Could the low resistance of the KARLYN wires be because of the resistance in the spark plugs, where as the BERU are designed for non-resistive plugs? Or should I go with the original BERU wires. Please help, this is very confusing.
arek