When I had a VW Passsat it had the 130bhp PD engine, it was remapped via Celtic, no problems and went up to 184bhp stage one. But my car as standard on there dyno showed it was at 155bhp, was it reading high? I also found that there remap was "aggressive" But did the job.
Now I bought a 2010 plate A3 2.0tdi 170bhp CR engine about four to five years ago, had been thinking about a remap for a while. So last year, after loads of research, used "Quantum" after I found "Celtic" to be aggressive in the past.
It was terrible, flat spots, dipping performance, poor performance curve and so on. The place I had it done, did try allsorts, ever head office at Quantum sent over a revised map, it was better, but output was down to 110bhp! It was 170bhp at the start! Still not right.
Quantum did try and say it must be my car!
I gave the garage its due, they looked over my car, found zero problems.
Original map installed, my old car was back and good again!
So I waited until last week to try a remap again, it just really worried me about what dealers were selling!
I did some research, decided REVO was the way to go, yes it cost more than most, but proven product with a good track record.
Its been in a week, its great! More power when needed, around 205bhp, smooth power delivery in all gears. Just like my original map, but has the power that it missed, that said it was quick before! Good smooth results with the added power, first class.
On a 200 mile motor way run, doing my normal motor way driving speed I'm getting a 4mpg improvement.
So REVO a big plus from me.
216K miles, same clutch, no DPF or EGR problems.
I look after it, service every 6K, drive loads of motorway miles, always top gear & fast!