Is the bottom part of the RS4 air box the same as the bottom if the stock S4 air box?
06-03-2007, 08:00 AM
#4
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Yup, fits fine. If you have an 01.5+ (revised intake manifold) you may want to drill a hole
in the RS4 accordian since it doesn't have a tap for the brake booster line like the stock accordian does.
06-03-2007, 09:40 AM
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I'm not sure why he did that, but I don't think it's better. First of all, you're drilling into a
more expensive part. Second, and more importantly, you do NOT want any additional stress on that brake booster line. The check valves on those are known to break (mine did) and you might lose braking assist in that event (you do NOT want this to happen on the road). Best case you'll have to buy a new brake booster hose ($100!). Trying to hook that line up somewhere it wasn't intended to go will only cause problems.
Just tap the accordian or plug the line.
Just tap the accordian or plug the line.
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06-03-2007, 11:15 AM
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Yup, with the tools i had it was just easier to relocate. And some people *claimed* that
their idle was better when they relocated instead of plugging, but who knows. that debate is a little hackneyed