Okay, who has researched any possible gains with extrudehoned turbo housings? I'm looking into having my T60-1 upgraded to a GT67 and figured while it was apart, getting it extrudehoned if it was worth anything in this type of application.

 

i dont think you want to hog out a turbo. the inlet tapers down right before the wheel to acelerate the gasses. hoging it out would be just like going to a higher A/R wich you can do by just ordering a diferent A/R