When I'm running the stock turbo ( like right now ) I really do miss it. After a couple months with it, I kinda forget how much better it is. Then a trip back to just cobb Stg3 tune and stock turbo reminds me real quick. I truely, honestly do prefer the way the cyborg drives over the stock turbo.
Its not a GT garrett turbo or an EFR, but its nice little "sport" upgrade. I had hopes of going to something larger in the future, but with the power its made recently, coupled with the lack of supporting mods, I'm not sure a bigger turbo is in my future anymore. I've positive that I can clip 270-275whp with all the mods to support it, great air, and E40. I've been this route before and every car has a point, a point where it goes from fun and reliable, you "win some, lose some" racing, and its just a good time to ALL OF A SUDDEN, your eating up clutches, your gearbox is over powered, your popping axles, your racing cars YOU HAVE NO BUSINESS RACING ( I did the the other night, 2014 audi S4 me by one car length to 120mph ). And it becomes more of a non-stop project to make the car faster, while keeping it on the road parts wise at the sametime. That point is really yet to be seen with the fiesta ST. I'm pretty much gonna develop this turbo, do the supporting mods, and retire to things like shifter bushings, special brake pads, antenna upgrades, and things like that. I focus on tuning and power so much, I don't get too much time to really enjoy the other aspects of owning this car.
Can say that meth/water injection, 2J racing intake, larger intercooler, compressor outlet pipe should all be more than able to add 11whp to my best V-dyno and met my ultimate power goal on "kill mode". Then I'll prob take it down a peg on the tune to 250whp and the clutch should stay happy, driveline should stay happy, motor should stay happy, and can move on to upgraded door inserts and weather-tech floor mats. Lord knows.... One day.... I may even get lighter wheels !!! Lol.
Also... For the record. I was thinking I'd develop another turbo upgrade for budget minded guys. A TD04L based wrx turbo with an upgraded compressor side, using an adaptor plate. But I think this turbo is doing so well; and the next step to a 310whp gt turbo is "right there", so... A turbo upgrade that is in between maybe a little pointless.
I don't want the car to loose its personality either, so a cyborg will prob be it for me, and I can live with that