urrrrm not sure about the throttle bodies but they are mega bucks anyway and wouldnt be worth the hassle on a 1.3 i dont think, need to run a standalone ECU.... all in all comes to about £1500!!!! As for chips..... i would deffo recommend as they give your car a better power curve etc so it pulls better all the way thru the revs... they use a rolling road to set them up so its spot on