Hi lads

First off sorry if this has been covered before I had a quick search but nothing came up if there's threads out there then please point me in the right direction.

I fitted my new exhaust yesterday it's a full mongoose turbo back with 200 sports cat and just got the engine management light on today. I know it's because I have placed the sensor before the cat and it's seeing it like a decat but the sensor cable wasn't long enough for me to fit it in the other sensor boss/bung after the cat so looking for options is it simply a case of buying a sensor with longer lead on it??

Thanks in advance for any help/info

Stu