The stock Audi S4 Avant, from the B5 generation, used to be pretty fast back in the day, but this tuned example is much more powerful. How much? Well, it is powered by a 3.0-liter RS4 engine with a ...
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8 twin-turbo V6 engines tuners secretly worship
Discover 8 twin-turbo V6 engines tuners worship, from Audi's 2.7T to Alfa Romeo's 690T, and why they're modification ...
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