- Joined
- Dec 11, 2006
- Messages
- 228
- Reaction score
- 28
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had my S3 tuned by RTECH recently and Niki advised that my current milltek exhaust is restricting flow past 400 bhp so I’ve now ordered a full BCS system. Also whilst talking to Niki he mentioned for best results I’m best looking at removing my current airtec cooler and fitting a welly cooler. What’s other people’s views on this? Will I just be wasting more money doing this for not much difference?