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im planing to put nitrous on this month like a 75 shot but its not going to be any fun if i can only go 110 so is it safe to use the excaliber programmer with nitrous
 

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You mean the Xcalibrator? It all depends on the program you use, but it's certainly possible to have a nitrous program made for your setup.

However, IMO, nitrous is the stock PCM's achilles heel because there's no way for the PCM to "know" when you're spraying. For that reason, I suggest using a J&S Safeguard to 1.) listen for knock and automatically retard the timing and 2.) automatically retard the timing either 2 or 4 degrees when the nitrous is activated.

A multi-program chip is ideal for nitrous, since it allows you to quickly change to your nitrous file. But a flasher will also work - it's just that you'll have to compromise a bit.
 
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