Level 4.5 TH400s - 1,100HP

Our Level 4.5 TH400 transmissions are built for extreme power, reliably handling up to 1100 horsepower. With advanced upgrades, billet components, and race-proven configurations, these units are ideal for high-boost, nitrous, or big cubic inch setups. Expect maximum performance, durability, and confidence under the toughest conditions.