I am working with a good friend of mine on a replacement turbo for the MPS and we need to know what model or KO4 turbo the Mazda MPS range use? There are apparently a few different versions, just like TO4's and we need to know which one. Volvos', Audi and a few others use different versions too.
Looking at hopfully making up a replacement cartidge with bigger wheels that will utilize the stock housings (Machined out of course).
If anyone can help it would be appreciated, or maybe post up a thred on the Mazdaspeed forum as for some reason im having issues with it, every time a change screens it askes me to log in agaon and i cannot post anything
My turbo off my MPS3 had K0422-881 stamped on it. I had mine off to have the exhaust and inlet housings ported out, wastegate hole enlarged, the exhaust wheel clipped and a larger compressor wheel fitted.
Ive attached a pic of the turbo, if ya look really close ya can just make out the number in the middle of the 3 lines of writing.