That is SL, not SI. Suspension lift.
After having a SL for awhile, your steering (which is a known weak point for Nissan) tends to wear out. The Calmini Steering upgrade takes care of that.
The SL will probably just have to wait until the next Mod Day.
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TNT #14
SWXC #95
I wish I could think of something clever to put here.
Cardomain