Turbo question if somone can help
 

When i bought my gsx last year the guy that i bought it from said the turbo was bigger than a 16g. He called it a t-28 killer. He said it is a t-28 turbo with a bigger turbine wheel. Is this true? How much do these run for if i were to sell it? Is it really bigger than a big 16g? Thanks guys:)