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Does my car have cats?

I'm amateur but not a noob, and I'm pretty sure something ain't right.

 

Took my exhaust off to do some other work (1990 Z32 TT), and I couldn't help but notice there are no cats on the underside of the car. But fair enough, I've fixed cars before with cars in the engine bay.

 

But then I saw replacement exhausts etc and they all had the cats on the underside of the 300zx, so I followed my pipework and I know where the lambda sensors are (right behind the engine bay) but as far as I can tell, I can't see cats? My car had its exhaust system replaced in 1998 immediately after the last owner purchased it, and I have receipts every year for parts/MOTs since but none mention a decat, and none mention emission failures/advisories for MOTs - although perhaps they "knew a guy".

I have a some minor white smoke out my exhaust, but no bad smells of HCs or NO/NO2.

 

So.. is there something about the early Z32 emissions or TT model that means a cat isn't needed?

 

The last owner was into racing, fitted a custom cooling fan amongst a few other subtle mods..

 

Backbox & Midsection:

image.jpg

 

Mid to front section:

Pipes_1.jpg

 

Split:

Pipes_2.jpg

 

Split 2:

Pipes_3.jpg

 

Split 3:

Pipes_4.jpg

 

Engine bay with lambda sensor (corroded bit below the red wire)

Pipes_5.jpg

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    Without cats a 300zx TT will still pass emission tests :thumbup1:

     

    He probably deleted them to increase exhaust flow.

  • Quote
    • Author

    Was it 1991 or 1993 when there was a change in emission/cat laws?

    But either way, thank ****, was dreading the thought of new cats hahah

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    No cats visible there. I think only USDM had precats.

     

    uk cars had a pre cat to

  • Quote
    Was it 1991 or 1993 when there was a change in emission/cat laws?

    But either way, thank ****, was dreading the thought of new cats hahah

     

    Any z registered before August 1995 does not have a cat test done during mot.

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