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Many thanks, i have now posted on Audisrs

Hello, my s4 had a turbo failure. my engine out and changed turbos to k04, removed downpipes and took out the cats, and mounted rs4 injectors and upgraded fuel pump. Then my tuner says that with no cats in downpipe i will have massive turbo lag with the k04's and it will be hard for him to tune my c...

thx for all the answers . i was talking to mrc tuning today, they say that they use the old s4 ecu and engine wiring loom. so now its time to buy the rs4 engine. i will try to document it here with pictures on rs246.com.. but first its time to go on vacation before i begin to swap engine =).

does someone else know? please help.

hehe! its always like that .. but its fun solving problems. But this problem i cant solve my self. so please say if you know someone who have done it before . i have sent a PM to viperbl but he hasn't replayd to me

Do you know if viperbl's S4 is a daily driver? =).

thx for answer! =). mine S4 has the facelift, but is pre the 400.000 chassis number. im new here, is Viperbl here on this formum? that would be great!! =). if it works out well i will post pictures of the build =). im getting exited !!!!!!!

Hi I have an 1999 Audi S4, and i have a audi rs4 engine waiting on me :D , but its one thing i need to know before i buy it. i know its possible to swap the s4 engine with the rs4 one, but what is the difference, and what else do i need to buy? my biggest concern is the electric system. the rs4 engi...