Plug & Play turbo options

Whart ar the plug and play turbo options for the VAG ASZ engine? Current turbo is a GT1749VA.

Also, do any of you have book recomendations re TDI's, tuning, and turbos, as a newbie I must admit to finding it difficult to follow some of the threads.

Thanks in advance, Chris

gt1749vb for a small increase.
You could go for all sorts of hybrids.

To be brutally honest, if it's done properly there's no such thing as a plug and play option as you'll need a remap every time you upgrade a trubo.

first thing you need to do is work out what your budget is and what bhp target you're aiming for.
Baz