I don't know what I'll be running. However, it won't be any of those. Here's why. The td05's are old as hell technology. They're not a bad turbo, you can just do much better. GTX3071R is a great turbo. Better off getting a Holset or turbo from Steve Murch for the price you pay as Garrett's are EXPENSIVE (for what you get). The Garrett 550 turbo looks to be awesome, but once again, same thing as the GTX3071R. Expensive for what you get and similar results can be had from a much cheaper holset based turbo from Murch. Now I'm not sure what turbo I'll get yet. My build is some time off, but likely I'll either go down the range of EFR's or I will use one of murches new in-house turbos. BorgWarner EFR series Cons. They're god awful expensive. If you nuke it, good luck getting it rebuilt or fixed. They're VERY long. So hard to get in the right spot. PROS: They're bloody amazing with spool characteristics. Built in BOV, wastegate and boost controller. Means much less money spent on extra fabrication work and kinda levels the price difference between a Garrett and holset tbh. All round VERY good turbos when done properly. Holset/Steve Murch turbos Conns: Big turbos. Hard to fit nicely. A lot of fakes out there (holset). Buy genuine from Murch direct. No integrated bov or wastegate. Lots of fab (like Garrett). Holsets can be laggier than the others unless you're twinscroll. This is where Holsets come into their stride. Pros: CHEAP. CHEAP. CHEAP! As long as you've explained your build properly and what you want from the car, Murch can give you exactly or near what you need. Very sharp pricing on rebuilding turbo or servicing etc. NZ made and assembled turbos. That's VERY basic but that's why I'd sway to either of these two, rather than Garrett or an old school TD turbo. Take your pick, but make sure you really keep your mind open and don't for the love of God pick something just because of its brand name. Sent from my TA-1012 using Tapatalk