im interested in buying a cat bypass for my 95 1.8 but im not sure if it will be able to pass an MOT and be road legal with one installed? if anyone knows would be cool! cheers
only legal on pre-92 cars i’m afraid.
Mines a '91 
Hi, if your car was made with a CAT and to a spec which the MOT centre will have emissions listings for, it will not be legal and will fail emissions without the CAT. You have two options have the garage that does the MOT (If willing) replace the Bi pass with your old CAT, MOT and then replace the CAT afterwards. However, driving around should you be stopped at a VOSA check point . . . . . . . . .Or just buy a hi flow CAT.
I replaced my cat with a bypass but found the din too much, plus a pain to swap at MOT time so I flogged it on Flea Bay and bought a Jackson Racing hi-flow cat instead.
Still get a good exhaust note and free flowing gasses but no dramas come the annual dance-with-the-devil.
Just a thought…
Not strictly true (doesn’t apply to non-UK models up to July 1995 if they are not listed in the Service Emissions book). Mine’s a '93 Roadster and passes the applicable emissions test with a de-cat pipe.
The OP’s car is presumably a UK model and therefore will need a cat fitted. If it is an early '95 Eunos then he may get away without having a cat fitted.
sorry i forgot to add its a jap import with the temp probe and all, maybie this will change things?
The cat overheat sensor is not an issue. This can be tied up out of the way by strapping it to the PPF with cable ties. As long as your V5C shows that the date of first registration is on or before 31/07/1995 (“M” plate or older) and that the MOT tester is satisfied that your car is not listed in the Service Emissions book then the old 3.0% CO emissions limit will apply.
cheers for the info! much appreciated!
Our 1999 Mk2 Roadster has the 3.0% Co2 emmisions because its in import.
Which is good really because our cta is knackered and I ahvent changed it yet.
Have you got the decimal point in the right place, because virtually all petrol engined cars registered from August 1995 onwards (including imports) are subject to a 0.30% CO limit?