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catalytic convertor backbox c2 (will c4 backbox fit a c2?)

jlee

Well-known member
Joined
14 Nov 2007
Messages
200
Folks,

i have a 1991 c2 and wondered if the catalytic converter is the same for the C2 as the C4 (ie. is it interchangeable between these 2 cars)

have a c4 catalyctic converter (used) and need to replace mine which is a c2.

thanks
 
C2 and C4 use the same exhaust system but the two boxes are simple silencers, the cat is installed before the first box just after where the two manifolds join. In the UK a 1991 doesn't legally need a catalytic converter so many opt for a bypass to get more noise and power.
 

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