hey guys got a paid of greddy SMIC's, there core size is 8.5x8x2.5. came off a pretty powerfull z producing over 700hp. one has a slight bend in it but works fine with no boost leaks, perfect upgrade to your z. price: $220
i have these... Supposed to be up there for the best flow of smic's! when i replaced my stockers with these, power kept building past 6k, when using the stock smic's power peaked at 5.5k. GOOD BUY!