peugeot expert - immobiliser/ security - pn1973

do you think its worth upgrading the standard peugeot immobiliser to say a transponder type one? just for extra security, or would they both do the same job?

peugeot expert - immobiliser/ security - elekie&a/c doctor
If you have a Peugeot model built after approx 1998,it already has a transponder immobiliser .You can't have 2.However it is possible to add another type system.
peugeot expert - immobiliser/ security - pn1973

thanks , so what system would you recommend?

peugeot expert - immobiliser/ security - elekie&a/c doctor
Hidden switch behind the dash to cut the electrics to the fuel injection system could be just as effective and cheap to fix.