torquenuts

Tuned my GC8 and Blobeye last year .... mapped with 200 cell sports cat downpipes to replace the decats.
Got the garages to do fresh MOTs ........ barely passed they said ..... who knows reallyyy !

So the game starts again ..... I need some advice.

A lot of talk here about 200 cell sports cats ......... bottom line - no guarantees with any brand.
Its really annoying to swop out downpipes for MOT.

What is the original system on a 97 Turbo2000 ?
For MOT I'm thinking of adding a cat centre section like BM catalysts BM90926 ... easier to swop
https://www.bmcatalysts.co.uk/catalo...M90926/366134/

What is the original system on a 04 Blobeye Sti ?
think this ... https://parts.subarusuperstore.com/v...ust-components
I dont know what to do here ? ..... I think I only have the original centre section 2nd cat and could fit that ...

Yes I will also use a fuel additive to clean.

Anyone found a solution to this yearly drama ?

FYI I did find this write up on Impreza exhausts
https://scoobyparts.com/blog/subaru-...-with-diagram/

Vxr2010

Main thing is give it a rag before the test , once they are hot they should be ok , the other bits I heard are cat cleaner or remove the air filter I've not done either of them , hot cat straight into test 👍