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Turbos work based on heat energy, not gas flow. So the key to anti-lag is making heat in the exhaust when the throttle is closed. The cleanest way to do this is to plumb a pressurized air source into the exhaust runners at their hottest point (near the cylinder head) when the throttle is closed, cut spark and add fuel. The Haltech has this capability programmed in with the appropriate safeties, so in theory all I need to do is add a valve and air tubes to direct boost pressure to the exhaust manifold. Combustion then occurs in the exhaust manifold instead of in the cylinder. The key is adding enough fuel and controlling the turbo speed because this is effectively a positive-feedback loop that can cause Really Bad Things if left unchecked.
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