GS300 1st Cat on NA

[Scott-tt]

I'm having trouble with the MOT test for my NA auto. It would appear the DVLA has updated the emissions data for import cars in the recent MOT updates. Apparently when you enter the VIN for an NA auto (can't speak for TT's) it is showing emissions data now and they are looking for it to be in a range like other cars. This hasn't been a problem in the past with my FTO and my Supra in previous years because they always got non cat tests due to not being on the database and the build date being before some time in 1995!

 

Now I have been frantically googling and it appears there is no patent part for the 1st cat for NA Supras, however I have found that there is a patent part for the 1st cat on the MK1 GS300 so my question is does anybody know if it would be possible to put a 1st cat from a Lexus GS300 on to a NA?

 

I have looked up both parts in Toyodiy both have different part numbers but look extremely similar would it just be a case of cutting off the pipes coming from the actual section off the cat its self doing the same with the supra cat and welding on the pipes going up to the flange or would it be too different a shape if you know what I mean?

[XIL007]

Surprised at this news my 93 car passed its MOT with no cats no problem. It has always been like this. Is it worth trying another test station?

[Swampy442]

You cant swap single cats on a JZS chassis, but if you fit both cats they fit perfectly

[evinX]

I looked into this. BM catalysts make the 2nd cat for the supra abd the 1st cat for the gs300. However theres sligjt differences like no opening for the temp sensor. Any exhaust shop that makes systems can fab one up im sure. But dont ask on pricing lol

[martincoupe]

so many 2nd hand cats out there for the supra surley someone near u must have a one u can borrow for mot purposes