What is FSI and why does the B7 S4 have it and the B6 S4 doesn't?
11-22-2007, 11:26 AM
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B7 S4 does not have it, yes they are the same engine
FSI is direct gasoline injection into the cylinder, instead of the intake manifold.<ul><li><a href="http://www.audi.com/audi/com/en2/tools/glossary/engine_driveline/fsi.html">http://www.audi.com/audi/com/en2/tools/glossary/engine_driveline/fsi.html</a</li></ul>
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