hi guys just bought a 1.6 4 door with sr20 in and as far as im aware its just the drive shafts, gear box, and engine plus ecu and what not already in i was wondering are the gti and 4 door bits interchangeable i.e drop links ,suspension, and what other bits plz help me as i now have the best of both worlds and want to make it a good one just need pointing in the right direction