4g63 has different exhaust manifold flange size and pattern. Get some extractors of a 4g93p 1.8 efi dohc engine from a Proton GTi or M21... the exhaust flanges on the sohc are same as the dohc.
sweet cheers for the info boys, but im looking for a performance bump from them not a replacement of standard, will the proton ones make any difference
The Protons I mentioned above came with tuned extractors as standard fitment. They did make 100kw remember. Also I believe my brother may still have a 1800 sohc efi Glxi Lancer ECU with a Powerchip in it. Ask him... username EVL20T.
I have a Cusco front strut brace with some rubbing damage from the engine bracket and a set of Proton GTI extractors from an engine swap that I can send you.
If old mate (Edit Gianni) from the other WTB thread goes for the Fylwheel and clutch assy im sure it can all go together from Townsville to Melbourne.