- Fits all Lotus Elise / Exige / 211 with 2ZZ engine (2005+)
- Head DIA: Int. 33.98mm (std) / Exh. 29.00mm (std)
- Stem DIA: 5.46mm
- Length: 111.65mm
- Part Numbers: TIVN-1031 / TEVN-31
- Black Nitride coated
- High nickel content stainless steel
- Swirl polished
- Undercut stem
- SAE EV8