A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Turbo Differences?

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Old Jan 21, 2004 | 06:42 AM
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smurfskier's Avatar
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Default Turbo Differences?

So what exactly are the differences between the ko4 - 15 and the ko4- 20 from a TT. Are they completely different or can the TT turbo be adapted for our cars? The other question is would normal ko4 software work or would you need special software? Tia
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Old Jan 21, 2004 | 07:03 AM
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Liam in Montreal's Avatar
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wont work
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Old Jan 21, 2004 | 07:07 AM
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A KO4 from a TT uses a different bolt pattern and won't fit an A4's manifold.
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