I have been told that the 4.2L V8 used in the S5 is essentially a "de-tuned" version of the same V8 in the RS4. I am curious if anyone can enumerate the differences in the 2 V8s. Thanks. Crosley.
Actually i was told from my dealer that the engine in the S5 is the same like the one in the RS4.
thats what i know
No they're not the same...they only have the same displacement. If it was a detuned version a simple re-map would get you the extra 70bhp.isn't the S5 V8 a detuned R8 4.2 V8?
An exhaust with 100 cell sports cat and a re-map will most likely get you close to 380 bhp but I doubt anymore than that.Thanks, SAJ, for the link. It appears authoratative enough to me. I guess it would have been to much to expect a simple chip to add another 70 BHP.