yup. And I'm always under the hood anyway... they give the tuner a greater knock threshold. I don't know if they have a copper plug for the Sti (haven't really checked too hard) I found this NGK - LFR7AIX #2309 <--one step colder gapped to .044
here's the FAQ on NABISCO:
Spark Plug FAQ: Read if you want spark plug information! - NASIOC
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SnowMan Tuned
Last edited by djerickd; Jan 30, 2007 at 07:01 PM.