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Whats the difference between ABT/AMS Ko4's and other RS4 turbos? Why are they 6K ??

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Old 10-11-2002, 10:02 AM
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Whats the difference between ABT/AMS Ko4's and other RS4 turbos? Why are they 6K ??
Old 10-11-2002, 10:13 AM
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that and what ever happened to "K04s" vs. "K04 motorsports"??
Old 10-11-2002, 10:20 AM
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Default This is what I heard/know...

...Abt K04s came out before the RS4 KO4s. They are a bit smaller and as a result should spool faster.

My "guess" is that at the low end, they give better performance than the RS4 K04s but the RS4 K04s should have better top end.

Which performs better? I don't know. But for the money, no question, the RS4 K04s are a better deal.
Old 10-11-2002, 10:27 AM
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Default Abt turbos are custom made KKK-04 turbos that are drop in replacements for K03s

Low production means higher costs. You may a lot more for turbos, but you don't need all the other plumbing.
Old 10-11-2002, 10:27 AM
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Default Read this thread:

Synopsis:

Abt K04s are basically RS4 K04 internals in a K03 housing. Designated a K04 part number by Borg Warner.<ul><li><a href="https://forums.audiworld.com/s4/msgs/638492.phtml">https://forums.audiworld.com/s4/msgs/638492.phtml</a</li></ul>
Old 10-11-2002, 10:33 AM
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Cool thanks.
Old 10-11-2002, 10:40 AM
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I guess they were the same issue
Old 10-11-2002, 11:01 AM
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Default They are not $6000

They are expensive but not quite 6000 bucks. They are 5299 installed. That includes other parts as well.
Old 10-11-2002, 11:04 AM
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Default more like $4K, for just the turbo's

but the price of RS4 turbo's, being what it is...

means more people will take some small increase in spool time, in exchange for a cheap price on RS4's
Old 10-11-2002, 01:27 PM
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Hey, that's me in my novice days...still no K04's though. Coilovers more important!
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