Jamie, Scotty from the old RB days here... how are ya? I've just picked up a TTG and put some 22" bling on it. Got it lowered on Wednesday using lovell springs (around 40-45mm) and the car had now developed a harmonic whine at a fraction above 80km/h. Rims were rebalanced and best balanced 2 went on the front... drove it and the noise is still there. Next step is to change the rear springs for a slightly stiffer version. Sorry to jack the thread, but does anyone know what can be changed to fix this?