This kit is for sale and is listed as compatible on a B5 S4. Can anyone confirm this horsepower would acutally be achieved and if this really would fit a 2005 s4?

Includes:
1) Dahlback (basically same as MTM) Stage 3 (meaning K04 turbos) chip/software, which is soldered to an M-box ECU
2) M-box ECU (as mentioned above)
3) RS4 injectors, used, but not for long
4) RS4 spacers (for using RS4 injectors on an S4)... these are new.

The beauty here is the software is tuned for stock MAF/intake so no need to swap anything besides ECU and injectors. Also, it worked with MBC/TCD with no issues. Possibly the easiest and cheapest (yet strong, see below) fueling option for anyone stuck at stage 3- (K04 turbos on stock fueling).

Estimated HP calculator = 489 HP, 510 TQ.

 

Ok my bad I thought 2005 was a B5.

 

And good luck fitting the twin k04s on the v8, kinda answers the question why they made the RS6: To find out what a twin turbo 4.2 would be like. The A6 gave them enough room to do it!

 

lol no b5 is 2000-2002
b6 is 03-06?
b7 is 07+

all of those are for the US s4's not the a4 or euro b5 s4