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So I've been looking around and found articles saying that about a 40 shot of nitrous is safe on the D series engine. I just got a new Si and am wondering if anyone more knowledgeable than myself knows what a safe boost would be in the K series engine? I'm talking about using stock internals etc. Anyone?

 
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dont get nitrous on a si, the si's electronics are soo sensitive its gonna mess up everything if you make the littleist mistake. but its up to you but i wouldnt recomend it.

 
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Yes I know it has a K series that's what I'm asking. What would a safe boost be on the K series engine be on the si.

 
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Id say just run a 50 shot to be safe, and just get ur intake/exhaust/header , unless ur waiting for turbo

 
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If you take a quick peek over at clubrsx.com alot of them are running nitrous. A 75 shot is putting them in the 13's on street tires.