I'm selling a CRDT which has had little use. It was bought for my brother who didn't really want it, so I'm selling it on.
It was used on an Insignia, but may work on an Astra with the same 2.0 CDTI engine (please check with DTUK first).
It is on eBay here:
DTUK CRD-T Stage 2 Tuning for...