The all new Garret GT30R with a dual ball bearing center section and featuring KKK turbine housing (also available with T3 5-bolt housing, and GT series 4-bolt outlet as well, please specify turbine housing in comments field at time of order). A direct bolt-on to Audi/Porsche K24/K26 exhaust manifolds and downpipes. We've run this turbo to 500 wheel HP; it suitable to 600 crank HP with over 30psi boost. Standard spool up on most 2.0-2.3l motors is 3800-4000 RPM with the highest efficiency of any turbo on the market.
Can be provided standard with 4" anit-surge compressor inlet or standard 3" inlet for easier installation.
See a compressor map here: