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Hi, I'm struggling to get this last nut off at the front of the cat, I've used a nut cracker tool which worked on the other 2 nuts but this one is rusted on good and the tool won't fit up to use on this last nut. I've soaked it in wd40, tried an undersize socket which didn't work, a grinder won't reach in to it either. Anyone got any tips?? Cheerspost-90439-0-66870800-1401830271_thumb.j

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To be honest i'd take it to a garage or somewhere you could get oxy acetylene on it. The bolts holding my cat on look equally buggered and its no fun lying on your back trying to get these sort of things off. 

 

Next port of call could possibly be to drop the lower manifolds off maybe?

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Cheers for the pointers guys, I managed to crack the nut last weekend with plenty of heat and some gentle persuation from a hammer and chisel. Decat fitted and it sounds awesome!! I suspect that my old cat is knackered - there is alot of loose sounding crap inside when shaken - possibly the filters have crumbled away?? it still passed its MOT a couple of weeks ago tho.

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