Yep ... had the same problem on mine. Gaskets cost about £20.00 and hope for your sake its the front manifold and not the back one! Had to have mine welded in a couple of places and cost me £150.00 (3 hours of labour with removal, pukka welds, new gasket set, reassembly).
If your one playing up is the front manifold, doesn't need any welding, then would be 1 hour labour, plus cost of gasket set. If it's both front and back manifolds blowing, then could be a larger bill, as getting the both off is a fair bit more work, plus second gasket set (up to £50) welding if required and re-assembly.
Still, could always treat yourself to a new Manifold from Auto Delta for £1,500.00 notes, lol.
1999 GTV - PH2 3.0 V6 - Vela Blue - 'Blue Style Momo' - Aero Pack
GTA Clutch, PH3 Alloys, Ragazzon Quad DTM, Koni SR-T, Powerflex Bushes
Last edited by PJ3074; 19-02-13 at 16:37.