Extreme Tuners testing their new Setup! Evo ix dynojet testing ~ 1797whp (~2250hp) 13500rpm Acceleration & Sound by turboandstance - January 26, 2019June 27, 2019 Extreme Tuners testing their Evo IX for the new season 1788cc - 13500rpm - 36psi boost (2.4bar) the highest efficiency 4 cylinder engine on the planet with 1797whp (~2250hp)! All the previous 1/4 world records were broken on 1380whp. Coming back to dyno soon to raise the boost. Their target is