Quote:
Originally Posted by iceminion
The FIAV is great, it causes the engine to warm up faster, so your engine will last longer. Cold pistons = piston slap.
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The FIAV does not "warm up your engine faster" as you put it. All it does is bump your cold idle up a bit.
The engine coolant warms up from the heat from the combustion process, not from routing coolant to the throttle body.