S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

So when going RS4 ICs, are RS4 IC shrouds absolutely necessary or is it OK to mod the stockers?

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Old 04-25-2006, 11:07 AM
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Default So when going RS4 ICs, are RS4 IC shrouds absolutely necessary or is it OK to mod the stockers?

I see in APRs RS4 IC instructions it just says to mod the stock shrouds...

Just wondering what people's opinions on that are.
Old 04-25-2006, 12:20 PM
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RS4 shrouds should give better airflow but a lot of people use modded stock without issues
Old 04-25-2006, 01:19 PM
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I'd love to know, as well. Maybe some real world data or logs
Old 04-25-2006, 02:12 PM
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Default I don't know how well modded stock ones turn out but improper IC shrouds can kill

the efficiency/effect of IC's.
Old 04-25-2006, 04:34 PM
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Default I'd bet APR is close to being correct. In all the time the RS4 IC's have been out

nobody has bothered to actually test the RS4 shrouds vs modified stock shrouds for any differences. You can definitely use the stockers and it's probably not going to cut the efficiency much.
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Quick Reply: So when going RS4 ICs, are RS4 IC shrouds absolutely necessary or is it OK to mod the stockers?



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