I was going through a Motor Trend magazine yesterday. And there was a spark plug advertisement for Bosch Iridium Fusion plugs. Got me thinking.

What kind of plugs are even in our GXP's to start with? Anyone bothered upgrading them? If so, to what?

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2007 Pure GXP, Fully Loaded except OnStar. BOV Rod Mod, BOV Spring Mod, Dejon IC Pipes, Dejon Intake, Dejon Manual Boost Controller, Dejon IAT2 Regulator, Dejon MAP Regulator.

GM Employee, Lake Orion Assembly, (Pontiac G6, Chevy Malibu)

"Drive it like you Stole it"

22 PSI Never Felt So Good.