When I had the 2015 nismo bumper on engine coolant temps peaked at 237F and the oil was in limp mode territory in summer weather on the track. That bumper is just too restrictive IMO for track duty. You would need to make many holes in it for it to function.
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GTR TT 493Whp/431lbft, Ecutek, Southbend 6puck,Quaife, RPM RollBar 4Point, R888R, JRZ RSPro F(10R/10C) R(10R/6C) 1000f500r inlbs+150inlbs Tender, SPL everywhere. Full Specs
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