valve metal blind kets for Vauxhall Opel Saab Fiat Alfa 1.9 2.4 JTD CDTI TiDStainle steelThickne : 1.2MMFor Zafira B (engines: Z19DTH 16V 150HP)For Saab with 1.9 TiD engines:9-3 (engines: Z19DTH 16V 150HP)9-5 (engines: Z19DTH 16V 150HP)For Fiat with 1.9 JTDM engines:Stilo 1.9 JTDM 16V (engines: 103kW/140HP, 93kW/126HP, 110kW/150HP)Croma 1.9 JTDM 16V (engines: 110kW/150HP, 2.4 20V 147kW/200HP)For Alfa Romeo with 1.9, 2.4 JTDM engines:1.9 JTDM 16V (engines: 103kW/140HP, 93kW/126HP, 110kW/150HP, 100kW/136HP)1.9 JTDM 16V (engines: 103kW/140HP, 93kW/126HP, 100kW/136HP)2.4 JTDM 20V (engines: 129kW/175HP, 120kW/163HP, 129kW/175HP)1.9 JTDM 16V (engines: 110kW/150HP)2.4 JTDM 20V (engines: 147kW/200HP, 154kW/210HP)2.4 JTDM 20V (engines: 110kW/150HP, 120kW/163HP, 129kW/175HP)For Lancia with 2.4 JTDM engines:Thesis 2.4 JTDM 20V (engines: 120kW/163HP)Benefits of blocking :1. Cleaner engine oil helping to give longer engine life.2. Turbo spooling up quicker, and at lower revs3. Helps prevents soot build up in intake manifold, and valve's, which will lower the power4. A smother drive, and usually better economy5. Will help it pa the MOT, as it will lower the soot outputVery quiinstallation.You need just to loosen screws, put blanking plate with the ket and then screw them down.