motolaunch15
10% off at www.motoparts.net.au plus free shipping when spending over $50
I found these guys to already be quite a bit cheaper than super cheap auto on a lot of items when servicing my car recently.
Quick example below shows the same part (air filter I bought) at both stores, pre discount.
MotoParts $36.96
SuperCheap $48.68
Not hard to beat supercheap these days, they quoted me $75 for a subu airfilter picked up one from repco for $45.