There is a larger SMIC you can get for the A4 but I would go straight with a FMIC if going BT as it will give you more scope to run a larger turbo.
RaceTec do a great FMIC but you can pick up a good Japanees unit of ebay made by Autobahn88 and go for around £250 where as the Racetec unit will cost around £400.
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OEM RS4 Body| RS4 front Brakes| RS4 shocks & H&R Race springs| RS4 Xenons| 18" BBS RC wheels| Scroll K04 Outlaw|RaceTec FMIC| Southbend StageIII clutch| Autobahn88 Silicon hoses| Baileys DV| Waiting to be fitted: TT MAF| 380 injectors| RS4 Rear brakes & a Remap
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