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Just bought my b7 S4 and I'm loving it. It came with a milltek catback that isn't that loud so I'm assuming it's the resonated one.

A couple of newbie questions:

How do I confirm it is the resonated Milltek?

Assuming it is resonated how would I go about 'unresonating' it?

Cheers!

have a look underneath...if its got boxes on the centre pipes its resonanted....to non resonante it buy some non resonated centre pipes and get them swapped

Cheers mate I'll have a look