Hi guys,have been looking into a project on my TSR over the next few years. I am looking to eventually convert my stock manual TSR legacy to a STI essentially. I am aware the TSR's have similar traits to the GTB but am not quiet sure how similar such as driveline and diffs etc. If i managed to get a wrecked v7 wrx (rear damage) i would look to convert engine, suspension, brakes, 6sp gearbox and seats. Just wondering for cert etc would there be any other major mods id need to make? and would anybody have any idea what cert would cost for all of this? Any advice/help would be very much appreciated. Cheers