will be taking of my mani and turbo etc to weld up internal wastegate next weekend or weekend after been looking on ebay and found these http://www.ebay.co.uk/itm/Galanza-Starlet-Sera-4E-FTE-4E-FE-Exhaust-Manifold-Gasket-40mm-/190574657064?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item2c5f227e28#ht_720wt_952 http://www.ebay.co.uk/itm/370410428689?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_1574wt_952 these the only 2 ones i need or will i need any others ? and are these ok not going to split within few weeks?