demon tweeks sell Koni springs for £98.99
I had them on my sri150, fitted perfect and never had a problem with them :thumbup:
you are correct about the lowering, sri150 is 20mm lower than standard and would be 35mm lower than standard with koni springs
you need springs for a 2.0 16v, do not buy them for a v6, some did and had to replace them with the correct 2.0 16v springs
Vectra B Sedan, 4-cyl. models, excl. Diesel versions 96-02
http://www.demon-tweeks.co.uk/products/ ... &x=36&y=11