Chipping V6 TDI

[jungliegod]

Thinking of buying 2002 (ish) Audi A4 cab with 2.5 V6 tdi engine. Great car but would like some more power/torque to bring it in line with new 3.0 tdi and BMW 330d etc. Has anyone chipped one and if so were the results worth it. Know DMS chip various cars and seem to have reasonable reputation. Not going for crazy improvment just a little more entertainment!

Thanks