Here’s my promised COBB custom tune stage 1 dynos:Custom tune is very similar to Stage 1 in general, but feels like some extra force added on high RPMs. Previously I felt some kind of acceleration and now feels like it should be go down, but not... car adds even more in pull. So I suppose main changes are on WOT and on 3rd/4th+ gear.
I don’t have PTV, but I don’t feel it is really needed. Probably because I run hard pulls on the strait lines.
I run car on track recently and don’t think it wants PTV any other place than dry curvy track. For wet and uneven surfaces I would expect PSM to save my life
Yes, I do have Soul downpipe, but... I posted in few threads that it was not dramatical change for the performance, at least before pro-tune... maybe faster spool. I think overall power increase over Stage 1 consists of (in order of weight): 1) reserve not touched by COBB, 2) +1 Octane index, 3) few hps from higher flow: filters and downpipe.
And yes, my PDK is modified as well. But with WOT pulls it is not a significant change at all.
What’s interesting is it’s 46bhp over measured stock- so exactly the same as APR!
Final measured figures were 392HP and 426 lbft torque (so on APRs dyno you‘d expect the same 422bhp).