If so, just do it! You won't regret it.
I have had a Vectra Sri 150 for about 6 month now and absolutely love it. Having been toying with the idea of a DTUK tuning box for some time, but couldn't really justify the £300 odd for it, considering the car was pretty quick already. To be honest it was mainly the better fuel consumption I was more interested in as I do 40,000 miles per year, mostly motorway.
Anyway, I spotted an ECO3 box on Ebay last week currently at about £30, listed by someone with zero feedback and it was due to end at an unearthly hour in the morning (about 3:30am) - common noobie Ebayer mistake.
So I thought I'd have a punt at it, set up a quicksnipe for £100 and crossed my fingers.
Following morning check my Ebay and I had won it for £46!!!!
Priot to it arriving, I did a few days trial runs, resetting on the onboard computer to find out what mpg I got on my journey to work (54 miles, 50 on the motorway). So with the cruise set at 70mph I got 52.3 and 52.5mpg on the 2 days.
The tuning box then arrived, plugged it in which took 2 mins and off I went. I drove exactly as I had the past few days, somehow managing to resist hoofing it to see what the performance gains were like.
Arrived at work and check the trip computer and couldn't believe what I was seeing........
Then, for the way home , thought I'd check out any performance increase.
HOLY SWEET MOTHER OF :CENSORED:
I can't believe the difference. It pulls from 50 to "cough" mph in no time at all.
To top it off, today on the way home, I had the pleasure of a 52 plate M3 comin right up my backside. Once the car in front pulled over, I accelerated just a little to overtake the car in front, then pulled into the middle lane to let the M3 pass, or so he thought LOL, as he tried to overtake, I'd dropped 2 cogs from 6th to 4th in readyness, and no word of a lie we were neck and neck until I thought about my license, so then let him passed.
I'm sure from 100mph+ the M3 would leave me behind but for everyday speeds, I can't belive my Vectra Diesel was giving an M3 proper grief.
I felt well chuffed. Can only imagine what the M3 driver was thinking
So, the morale of the story is....
BUY A DTUK TUNING BOX...YOU WON'T REGRET IT