ELF TURBO REF is compliant with the 2020 FIA Appendix J regulations and has been specifically developed for turbocharged 4-stroke engines.

ELF TURBO REF ensures utmost engine power thanks to a wider selection of specific compounds, whilst ensuring engine reliability.
Performance gains can reach as much as 4,5% power at 5300 rpm on turbo R5- class, compared to ELF TURBO ADV-R.

ELF TURBO REF presents optimum properties of energy content, knocking resistance, charge cooling and combustion speed ensuring power improvement at low and high engine revs.