yep i plan on getting the 0-100 psi gauge. As far as the fitting goes ^^^ that is the exact one i was looking at, i just don't know what size the test port on the S3 rail is. Then as far as the other side of that fitting i will need some kinda cap that is meant to hold pressure, unlike the stock one on the s3 is just a dust cover.
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S3R summer 08
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