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Hi,

Here is the info I got from B&B - I would say much better value that ABT...

B&B tuning Audi SQ5 V6 3.0BiTDI 313PS/650Nm - Stage 1K ca. 250kW/340PS/720Nm - EUR 1.498.-
Assembly performance optimization including extensive pre- and end diagnosis and motor coordination - EUR 98,-
price - EUR 1.596,-

B&B tuning Audi SQ5 V6 3.0BiTDI 313PS/650Nm - Stage 1S ca. 268kW/365PS/750Nm - EUR 1.698,-
Assembly performance optimization including extensive pre- and end diagnosis and motor coordination - EUR 98,-
price - EUR 1.796,-

B&B tuning Audi SQ5 V6 3.0BiTDI 313PS/650Nm - Stage 2 ca. 294kW/400PS/800Nm - EUR 4.950.-
Assembly performance optimization including extensive pre- and end diagnosis and motor coordination - already included
price - EUR 4.950.-

* optional:
warranty for engine, gearbox (accordance with the warranty conditions) up to 3 years/100.000km - EUR 198,-/year
performance measurement before and after - EUR 170,-

I also asked about the gearbox load of 700Nm rated and why the jump in price from Stage 1S to Stage 2;

"we already tested this high torque of up to 800Nm extensively on A6 and A7 models an there has never been any problem.

On stage 2 the injectors are optimized and as well the air intake and airflow. The electronic mapping is optimized to these mechanic changes, this is why stage 2 is on higher price than 1K and 1S."

Still think I will be waiting another year or so before looking at something like this...
 
If you have never read it this article on the SQ5 TDI engine is very interesting (if you have an engineering inclination) http://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CD4QFjAA&url=http%3A%2F%2Fwww.profituning.sk%2Fprofituning2%2Fuserfiles%2FTHE_NEW_3.0-L_TDI_BITURBO_ENGINE_FROM_AUDI[1].pdf&ei=gDEVUoG3EMmX0QWf34CgBw&usg=AFQjCNGS5nEgHn0iuWib1_5OTeyBDf8z1Q&sig2=n4tdxtRF49MWYOymvHltJg&bvm=bv.50952593,d.d2k

My concern would be that you can't help thinking that Audi have squeezed the absolute max out of the engine as delivered, going further potentially pushes critical temps into risky territory. One also learns that the SQ5 isn't just the 245bhp engine with two turbos but actually a radically different beast.
Very interesting read. I did wonder how different it was from the single turbo.

Not sure on your conclusion, it mentions 3 times that the design of various components lends itself to future increased power/performance...?

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