'91 MR2 Turbo
I understand the concept of clipping the turbine fan(15 degrees) on the turbo for flowing more exhaust, but exactly what part of the blades are clipped? the ends or the side(s) of the blades ? If the side(s), which side(s). Must this be done by a machine shop or can you do it in your own garage ? I do understand this proceedure must be exact and balanced...