Bosch +4- part #4458. Everybody has personal preference on spark plugs. This is mine. Over 60k on first set- came out looking like new. NGK is great plug also. Can't go wrong with either.
Barry-2002 WRX-Sedona Red Pearl
K&N Air Filter- 225/50-16 SP5000's/Cusco Front Crossmember Brace/Borla Exhaust
JoeP Manual Boost Controller/Kartboy Solid Rear Endlinks
Samco Intercooler Hoses
Silencer Removed
Will Always Be Immaculate
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