Seibon GTII-Style Carbon Fiber Hood | 2017-2018 Nissan GT-R (HD17NSGTR-GTII)17 18 Nissan GT R GTII Style Carbon Fiber Hood by Seibon Seibon Carbon components are carefully hand crafted using only the finest materials. Their production team offers superior craftsmanship with over 15 years of experience working with carbon fiber. Every component is constructed with a consistent weave pattern. Seibon's production processes allow exceptional carbon resin ratio, creating high product stiffness that also leads to extra strength.