Toyota Tundra 2021 TRD Pro - interior, exterior and drive (growling exhaust sound) ENGINE: 5.7L-V81 5.7-liter DOHC EFI V8, aluminum block with 32- valve aluminum alloy head with Dual VVT-i Displacement: 5,663 cc Bore x Stroke: 3.70 x 4.02 in. Compression Ratio: 10.2:1 Horsepower: 381 hp @ 5,600 rpm Torque: 401 lb-ft @ 3,600 rpm Ignition System: DIS (Direct) Fuel System: EFI Recommended Fuel: 87-octane or higher (E85 capable) 1 Emission Certification: LEV 3 ULEV 70 / TIER 3 BIN 70 EPA Estimated Fuel Economy* (city/highway/combined MPG): 4x2 13/18/15 4x4 13/17/14