
Originally Posted by
AvantSRT8
What's an IS4?
I'll also assume you are talking about a V8 S5, since the A5 is just hitting showrooms.
And, considering I just stepped out of a V8 S4, I can offer some insight.
The V8 versions of the S4/S5 don't stand a chance against the SRT8. They will take a lead off the line thanks to the AWD, but will quickly be passed. Mods for the 340 hp 4.2L V8 are very limited. Stock they put down 260/255 whp/wtq and fully mod'd (Full exhaust,CAI,Flash) they might see 285/280 whp/wtq.
On the other hand-
If you are talking about a 2.7tt S4 from the years 2000-2001, beware.
They can be monsters mod'd.
A full K04'd 2.7tt is a 500whp, 11 second car.
And if so wished, can look and sound exactly like a stock 250hp car.
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