Hi All,
thinking of getting the 520d remapped, Got a quote from KC systems watergrasshill .
Make & Model : BMW 520d

Current BHP & Torque : 163 bhp & 340 nm torque


Remapped BHP & Torque : 195 bhp & 400 nm torque

Estimate time to Remap : 1-2 hr

Approx cost ( euros ) : 250

Anybody have any dealings with them? good , bad , indifferent?
Are these the generally returns I should expect? and Is there anything I should do prior to remap and what should I look out for?

thanks,
Dan