I went back to a SS3600 this past weekend so the SS4000 is for sale. Less than 3500 miles on it and maybe 50 passes. I believe it has been sent back to Dave at Yank at least once to be cut and cleaned. $400....
Night and day. I had a pretty decent tune for the 4000 but it gets old in traffic under TC lockup. The SS3600 is the highest I would go for a daily driver. Also gears make a huge difference. I currently run 4.10's.
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