OK, positive post now......Ahmed just emailed these pics of my "O" ringed inlet manifold - this is the proper way to do it, as the "normal" paper gaskets are blown outwards by the boost -

AFAIK only Grove/Ahmed do it this way (among Cossie tuners).
Looks normal enough........

But close up shows CNC machined grooves for the neoprene sealing rings that will be fitted:

Ditto the plenum face piece.....

Precission work.......


Good for high boost and long for trem reliability..........also no need to buy any more gaskets......reuseable neoprene/or cheap to replace anyway