I need to buy and install my own spark plugs?! Deal-breaker right there!!
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HKS Australia, what exhaust system is this kit tested with? Makes a big difference if it's being tested with a stock system or a Hi-Power system, stock header vs. aftermarket, etc.
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Current: 2005 Porsche 911 Carrera S 6MT
Previous: 2 BRZ's, 997 C2S, C5 RS6, C4 S6, B8 S4, GDB STi, S30 240Z, FC3S RX-7 TII, AW11/SW20 MR2, E30 318is/325i, etc.