Your car has ASR. The bracket holds the ASR pre-charge pump in place.

If memory serves me, the bracket is held on with 5mm hex bolts.

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David Hendy
'97 Renntech E60RS
'97 GMC 2500 Sub' Diesel
'95 E300D
'88 300TE
'88 250TD
'84 L/Rover 109