Diesel Tuning Boxes?

[Phil_N]

Hi, i'm looking to get a diesel tuning box for my audi A8 4.0 TDI to increase my bhp. Has anyone heard of any decent ones about or have one themselves?
Have found diesel power one at www.bhpplus.co.uk which looks pretty good, anyone got any advice?
Cheers

 

[sbravia]

remap is better