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I am of the opinion that you generally will not be able to take full advantage of the aftermarket intake, which has nothing to do with cold air, without some form of tune. Installing one of these intakes results in a greater volumetric flow of "hot" air. That is, you get more air, but it isn't cold. Getting cold air to the engine requires more than what either K&N of Volant kits provide.
It should be noted that there has been documented cases where Hp & Tq have been lost when implementing aftermarket intakes without tuning. Upon putting the stock airbox back in, the lost horsepower and torque are immediately gained back.
I never set a baseline dyno pull, but with Kooks Long Tube Headers, Magnaflow Catback, and K&N Air Charger CAI...without a tune the car made 359 rwhp / 362 rwtq. After the tune the car made 374 rwhp / 367 rwtq. I think that it would have been interesting to see the dyno results with headers & catback, but without the CAI and tune.
-K
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2005 Black/Black M6 GTO - Futral Tune (503/466)
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Last edited by LA_Phantom; 11-02-2007 at 11:39 PM.
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