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Old 04-11-2016, 02:21 PM
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bcredliner bcredliner is offline
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Location: Little Elm,Texas. (40 minutes North of Dallas)
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More air in more, more air out=airbox and lower restriction exhaust. Combine that with engine software to get most out of it. Exhaust manifolds are quite good and decent headers are a poor investment based on performance gain per $$$ spent. Stock intake manifould will handle more air in. Transmission software will help keep the engine in the power band. some like how the X pipe changes the sound and it may improve extraction. How far do you want to go? Products - Dinan, Leader in BMW Performance Parts and Upgrades
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
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