Which ECU and Exhaust / Cat upgrade for an RS4?

Discuss common aspects of Audi RS and S tuning and modifications
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siwebb
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Which ECU and Exhaust / Cat upgrade for an RS4?

Post by siwebb » Thu Oct 21, 2004 1:40 pm

Just wondering which ECU and Exhaust upgrades can be recommended for a much loved RS4? I want to keep it quiet but wouldn't mind beating the RS6 I've just got rid of. Based in Cheshire near Manchester. Recommendations please!
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