it's very unlikely to blow your turbos, you get all the amazing features of EMCS and the demobilizer now. You can run test pipes with no CE lights, you get a dealer mode, valet mode....if you want to go for the most performance, yes apr is not the way to go, but i know on my stage 2 car with no dps - i ran 105mph trap speeds with 100 octane program - and never blew a turbo, bpv, f-hose, or anything for 35k miles.
2008 Audi RS4 - Sprint Blue, Carbon interior - damn sexy!
Forget violence, you are now driving war. There aren't enough superlatives (or space) to properly describe the vulgar joy of driving an RS4.

2004 Volvo V70R wagon - sold
2005 Chrome Orange Lotus Elise - sold and missed
1999 SSL 160 Input J series console flagships the music.