standard internals (apart from the oil pump gears) are good for anything up to 400rwkw which by then the stand turbo starts to run out.

the rebuild option is really only there if either the standard one lets go or you are seriously thinking about going above the 400 mark with something like a bigger turbo/exhaust manifold.

pricing ranges from 3900 for forged internals to 5600 for built short motors all the way to 10k for fully built long motors capable of handling 1500hp.

rebuilding the engine in my opinion is only worthwhile if you go for more hp with this turbo kit, but then it turns into close to 20 grand for roughly 100rwkw's extra.

400rwkw and 20 grand in my pocket or 500rwkw and stained underwear