Improve the power, response, and performance of your 2014-2021 Tundra engine with these parts and upgrades here at Stage 3. Even small updates like a cold air intake or throttle body spacer can add impressive levels of power to your Tundra. Toyota Tundra Fitments: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Toyota Tundra with 4.0L V6, 4.6L V8, and 5.7L V8 engines. Submodel Fitments: SR, SR5, Limited, TRD Pro, Platinum, 1794 Edition. Some exceptions apply, please see individual product pages for specific fitments.