I have a Eunos, manufactured in 1992 but first registered in the UK in 1991. It has a CAT so presumably it needs to be replaced with another (currently rattles although passed its last MOT) but can a Cat bypass pipe be used in conjunction with a new stainless steel exhaust? What about emissions could it fail, has anybody experienced this?
I am not intending to race the car so it will not be track focussed as I understand some CAT’s are designed for track use only.
How on earth was a car built in 1992, used in the UK in 1991? Time machine?
I assume its a 1991. Imports, pre ~95, don’t need a cat, depending on the mood of the tester (yes, I know you can get them to stick to the letter). It will be tested to a different standard. Unsilenced bits of pig iron cat pipes are about £30. Unsilenced stainless steel scrap are about £50. Silenced cat pipes are getting onto the £60-100 range depending on quality. A decated car, with an aftermarket exchaust, is not aurally pleasurable. Replacement cats, decent enough quality, are £60-80. Better off fitting one of those. If your cat is blocked, of course the car will run better (if sootier) with a cat pipe. But so will fitting a new cat.
My CAT rattles and I was looking at a replacement (although the one MX5 Parts sells does not have a good reputation for lasting long). They also sell a stainless steel Cat bypass which is cheaper. There is a used OEM for sale on ebay 370mm, the size I need, but it strikes me as being a risk to spend £100 on that.
It’s a 1992 Eunos so even though registered in 2001 should have a ‘K’ plate or thereabouts.
As a 1992 manufactured car, cat is not required and emissions test should be easy to pass without a cat as long as the engine is running correctly.
Original Eunos cat would have a one time heat fuse fitted(not required). I would take the fuse off and either replace the cat with a UK spec item(345 - 375mm) or fit a decat.
For some reason there was an issue sourcing the decat for these back a while so perhaps a cat is the way to go. I sell these cheaply(cats) so please PM me for a price.