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post #53 of (permalink) Old 10th July 2008
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It's no coincidence that in F1 terms,engines had a minimal air filter and a minimal exhaust system.

If the exhaust gases can escape with less restriction,then the more capable they are of spinning the turbo .

If the air it displaces is free flowing,then the easier the turbo can spin.

I don't think the type of air filter used is the most important factor in turbo life,but it can't hurt having a free flowing air supply to it.

I'd rather push my Alfa than drive a BMW....
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