Hoping someone can help? My Caterham failed its MOT this year - emissions too high. Many tweakings later and replacement of leads, plugs etc. etc. it's still failed. Turns out the catalytic converter had been removed & the lambda sensor switched off! How did I not know this? Anyhow, I desperately need to refit the Cat; it's a R400 super 7 K series, with 4 into 1 exhaust. Looking for a second-hand Cat, if anyone's got one hanging up in their garage please? MOT fully expires end of this mo
