Any differences between THOR and GEMS cats?

kooky_guy said:

Hi All,

Just a quickie (I hope). I've been offered a pair of cats from a THOR engined 4.0. Will they be the same as mine (GEMS 4.6)?

I thought the THOR vehicles had two lambda sensors per cat, but this only seems to have a single sensor at the front of each cat so I'm hoping they will work (I don't have mine with me to check).

Guy

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Druim said:

Changed in 99, so if both are from before or after 99 it should fit. Donno if the sensor are the same though, maybe this link gives a clue.
Exhaust V8 - Island 4x4 - Specialists in Land Rover and Range Rover Parts and accessories for all models. UK and worldwide mail order.

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kooky_guy said:

Well that's the problem. Mine is a GEMS (ie pre '99) and the donor is a THOR (post '99).

I always thought they were different (mainly because of the number of lambda sensors) but these THOR cats only have a single sensor like mine.

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