You need to smooth every mesh that has a "_T" at the end of the name and only those meshes. In case you already renamed them, check the original model and compareSome testing with the turbosmoothed interior.
some small changes to make it look less blocky.
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Are there any more things i should turbosmooth?
I've added AO the the rear box and added a bit more turbosmoothing to the exhausts they are more circular now.
Gonna try out refraction again hopefully finding the nm files won't be a pain in the ......