Hi the flange on my irmscher back box had snapped off and with the back box being in good condition i got a new flange put on. the problem is the new flange is much thicker than the one that was already on so the bolts with the springs on dont reach the middle pipe flange ,a friend said i should just cut a bit of the springs but i'm not to sure about doing that, just wondering if you could get longer bolts any ideas, the cars a vauxhall astra 2.2 sri 52reg, with a sportex straight through pipe and irmscher back box thanks