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In rehab for nitrous
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149 Posts
Discussion Starter · #1 ·
I have a set of 4 Denso iridium plugs type IK20 made for the sr20. These are used plugs with less than 5k miles on them i am selling them because i started sprayin and hot plugs=bad for nitrous. These deliver a 3-5hp increase over the ngk plugs, and give a smoother revving engine (from what i noticed) over the ngk's. these plugs cost me 60 bux brand new looking for 30 shipped obo
 
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