This type is a direct replacement for original equipment (unless other wise stated) and will add between 6 to 8 BHP.
I have been offered one which I would like to purchase, however I have it on good authority from SBD that I have to retain the CAT on my car for MOT's (1993 K-reg).
If I understand correctly, this manifold bolts onto any XE engine, i.e GTE 16v and GSi.
If this is the case why does a standard GTE 16v manifold not fit an Astra GSi, where are they different? It it the downpipe or something?
I have also been told that no-one has tried to fit this manifold to an Astra GSi with a CAT, is it gonna fit?
Cheers for any enlightenment.