While i'm not saying uni or others don't up the boost a little bit, you don't make power with a diesel like you do in a gas car.
sort of think of it as the opposite. With a gas car you up the boost then fuel to match to keep it safe.
With a diesel car you add more fuel then up the boost/airflow to keep it safe.
99% of the power gains from a tune with a diesel application are fuel alone.
I've been running MaloneTuning's stage II file for 2 months now. I reccomend this to anyone who will spend 600 dollars on anything for this car this should be first. The car pulls hard to 4500-4800 rpm amd first gear feels 50% longer because of the rev limiter turned off. Honestly the rev limiter really shines in getting a tune for this car because of the short powerband we start with.
Some nitpicks, once the engine gets too hot the power with surge, for example WOT at 3rd gear will be inconsistent and jerky. It will surge and feel like you are taking your foot off and on the gas. So when that happens you can shift earlier and there won't be any surging, it only happens WOT or or prolonged periods of max boost. Keep in mind I do not have a downpipe! With the egr delete and dpf delete the car will not overheat and surge and be capable of more power in the higher rpms.
I believe with an intercooler, intake and downpipe my nitpicks will be corrected.
Does it effect your overall mpg at all?
I definitely drive the car a bit harder because its so fun now but I have done a few tanks where I babied it and saw an average drop of 2 MPGs. I was getting combined 40 mpgs and now I'm around 38. But in my opinion, completely worth it. :thumbsup:
2 things
1- if you dont have the dsg tuned, it actually has the ability to limit the power of the engine or effectively the dsg can momentarily "detune the ecm" whenever the tq exceeds factory spec, so this will affect mpg as well as not allow you to feel the full potential of your tune
2- you will definitely pick up those mpg's if you remove the post turbo restrictions(egr dpf trade out the stock cat for hi flo cat) also since it is tuned, if you dont have an inrake yet, that will help too but only if done in conjunction with the exhaust side upgrades.
All to often people forget to look at this stuff as "science of engineering" the manufacturer engineered this as a system, if a person wants to mod any part, really they need to look at the whole, its all complimentary.