Hi all I currently have an n/a vl calais and looking to turbo in the future. Just wondering if I buy one of these 4 Pinion 28 spline LSD aka 'VL Turbo' Diff Centre - eBay V8, Performance Parts, Car Parts, Accessories, Cars, Bikes, Boats. (end time 18-Apr-10 17:46:48 AEST) and get a local mechanic/diff person to fit it would it possible? or would I have to buy a whole new vl turbo diff? And would it be alright to use a vl turbo diff on an n/a?