Got these in my inbox. Might be useful to some of you:
MBRP15 - 15% Off all MBRP products.
MAG20 - 20% Off all Magnaflow products.
AMP11 - 11% Off AMP Research products over 1k.
SNOW5 - 5% Off all Snow Performance products.
10LRG - 10% Off LRG wheels w/ purchase of 4 wheels
25HYPMAX - $25 Off Hypertech - MaxEnergy products