GSC Power-Division Super Alloy exhaust valves with a 6.6mm stem and 1mm oversize head for the Nissan GT-R VR38DETT. Designed for builds targeting 2,200+ hp.
- Part number: GSC2057
- 6.6mm stem, +1mm head
- Pairs with GSC 6.6mm exhaust valve guides (GSC3143)
- Available as a set of 12 or as a single valve
Shipping: $30 flat rate. Ships to the contiguous United States only.