I use factory plugs in my R which are supposedly bosch.
I used to be a champion man way back in the day, but ever since my motorcycle and boosted days I prefer NGKs.
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2004 S60R - 350+ HP, AWD, Custom FMIC & Exhaust, Active Suspension & A Big Set Of Brembos
Crazy Camber, Stretch & Poke; its the new triple-stack-bleacher-wing ricer fad that's all the rage nowadays, lol