I have a loba 270 and a loba 270 modified with a Billet 2.0tfsi upgrade wheel, about 2mm larger than loba wheel and much deeper veins, the turbo housing needed machining. On this upgraded loba I had the oil seals upgraded to stop oil seeping past.
I'm not slagging loba off, but you will struggle to get 270 from one. Your looking at 265 max. It's because loba calculated the 270bhp from running 1.7 bar max. You won't be able to hold 1.7 bar with this engine however good your tuner is. The exhaust ports in the block are simply too restrictive aswell as the turbo exhaust manifold.
Also you cant run it with a decat exhaust, there's less back pressure with the loba anyway, then with a decat theres even less back pressure, more than the seal can handle so oil gets pushed passed into the exhaust leading to smoke. My friend is running a decat with the loba and gets the same smoke
problem at idle.
Its not a bad turbo, but you need to be aware of its capabilities. A hybridization of your oem turbo by turbo dynamics will be around 700pounds to match the spec of the loba. So considering the loba is 1700, and considering the oem turbo is 1100, it works out about the same..........unless you want to take your turbo off and send it in to get hybridized by turbo dynamics but you would then have to wait around 2weeks to get it back.
My standard loba will be up for sale soon as my modified loba is going on soon. it's done less than 1000miles as the car has hardly been driven over the last few months, spent most of its time at tSr.