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STI Block Swap - Spark Plugs

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Old Apr 21, 2010 | 07:25 PM
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WRXer
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Joined: Nov 2005
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From: Ewa Beach
Car Info: 2004 WRX
STI Block Swap - Spark Plugs
This might be a dumb question, but would I use WRX or STI spark plugs for my WRX that got an STI block swap?
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Old Apr 21, 2010 | 09:26 PM
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FW Motorsports
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From: Participating in some Anarchy!
Car Info: 2005 LGT wagon
2.0l heads= DENSO IK20 or equivalent.
2.5l heads = Denso ikh22 or equivalent.
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