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    For Sale Audi S4 B9 - Milltek HJS 200 cell high flow cat Downpipe

    Used for just over two years. Check Engine Light free throughout. Makes a noticeable difference in overall sound and pops, without all the bad smells and limp modes of a de-cat. Makes power on its own or stage 2 power with a remap / tuning box. Bad point is some of the cells have torn, not sure...
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    For Sale Audi S4 B9 - DTUK tuning box

    This is the Bluetooth app version. Map 3+1 was good for 3.5 Second 0-60 with a Milltek downpipe (also for sale in another post). One of the locking tabs is missing on a connector (Hasn't come loose for me, due to reusable zip ties provided), so priced to reflect. £200 ono, selling from East...
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    Chassis Differences between S4 & RS4?

    Hi Guys I'm struggling to find an OEM parts list for the differences between the S4 and RS4. I suspect the RS runs larger roll bars, higher poundage springs and some additional hardware to allow for more camber? I also suspect many of the RS parts will be straight swap to the S. Any pointers...
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    S4 Downpipe options

    http://millteksport.com/exhaust.products.cfm?variantid=1554 For the B9 S4 / S5 it looks like Milltek have three options: Cat bypass / Test pipe Milltek downpipe using 200 cell HJS core HJS EC Approved 200 cell downpipe Its obvious the cat bypass is illegal for use on the road so I will skip...
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    S4 tuning boxes

    I can see a few threads over the last year talking about tuning boxes. Seems like we have a couple of options to choose from: https://tdi-tuning.com/car/audi/s4/30-tfsi-quattro-349-bhp-354-ps-260-kw-500-nm-369-lbft/crtd4-sent-multi-channel-petrol-tuning-box-chip...