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91 S5 T2 intake?

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Old Dec 29, 2012 | 07:35 PM
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91 S5 T2 intake?

Hey! I'm looking for an intake for my car and i need some ideas on what's top of the line, or what you recommend for an intake to use. Any suggestions or tips would be awesome! Thamks
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Old Dec 29, 2012 | 11:15 PM
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"Top of the line" is debatable, and it depends on the application, but generally the top of the line setup is custom slide-valve or Weber-style EFI throttle body, and a peripheral port or bridge port manifold. Some people also use a plenum.
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Old Dec 30, 2012 | 10:18 AM
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Now if you are referring to the typical "cold air" intake or cone filter, instead of an intake manifold, then really, the filter is far less important than keeping isolation between it and the hot engine bay.

You'll notice that the car came from the factory with a cold air intake. If you just stick a cone filter on the AFM, you'll suck engine bay heat and just end up making the car slower. So you'll need to build a proper cold air box around the filter, drawing air from outside the engine bay and sealed from the rest of the bay.

Keep in mind that if you've upgraded the exhaust, and then add a less restrictive airbox/filter, you will likely run into dangerous boost levels so fuel upgrades will be necessary.
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