to make the 344kw in a g6t that u are making now in your bf, u would need a new turbo. the same spec as a stock ba/bf/fgf6. or to get that turb rebuilt to the standard of a true 3582r would cost almost as much as a new turb. bout $1550 ish id imagine, and then u would have to start from there with I/c, injectors exhaust etc etc