Having owned 2 other tuning boxes from DTE on other vehicles i finally purchased one for the Coupe.
I've purchased one of these http://www.diesel-performance.co.uk/...stage-2-(crd-t)
Fitting it is very straight forward. It plugs into the Common Rail and the boost controller. The control box can be mounted in a suitable location and cable tied into position ensuring the flexible wiring loom isnt going to get caught in any moving parts or melted on something hot!
The system comes with 4 Maps each of which can be set from -30% to +30% in increments of 10%.
The system is only active once the car is revved above 3000rpm.
I have driven the car for a few weeks now with the tuning box on and have had no problems with excessive smoke or engine management lights coming on.
The additional power the box achieves is really quite amazing. The surge of additional torque from low down the rev range is the first noticeable thing, making light work of overtaking in any gear.
The additional torque is more noticeable at motorway speeds when accelerating in 6th or 5th gear from 50mph onwards.
Obviously i cant confirm or deny the claimed increased bhp/NM figures as i havent had it RR. All i can say is that it certainly feels a vast improvement.
The engine doesnt sound any different and economy hasn't changed either.
Driving around town enables gear changes at 1300rpm and it will pull 5th gear as low as 35mph without labouring.
To summarise i would highly recommend anyone who cant go down the remap route, because of warranty issues etc to purchase one and see for themselves.
I also purchased one of their pedal boxes - http://www.pedal-box.co.uk/site/inde...t&content=5852
The box basically plugs into the throttle pedal and increases throttle response. The pedal box has 4 different maps and sport or economy modes in 4 different setting. Throttle response is sharpened up and can be set to user preferences.