Find upgrades that keep your Cummins working hard and running cool. From turbo systems and exhaust manifolds to install hardware and replacement parts, Diesel Power Source engineers clean-fit, durable solutions for daily work trucks, tow rigs, and high-power builds.
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Performance components improve airflow and reduce backpressure so your truck accelerates quicker, tows stronger, and holds speed on grades.
Improved charge air and exhaust flow help the turbo operate in its sweet spot, supporting cleaner combustion under load.
Thick-wall castings, reinforced partitions, and precision-machined flanges resist cracking, warping, and leaks through repeated heat cycles.
From stock-replacement parts to S300/S400 turbos and compound-over-stock kits, choose upgrades that match towing, daily driving, or high-fuel goals.
Ready to compare options? Visit Diesel Exhaust Manifolds, Turbo Systems, or the Shop by Truck hub to jump straight to your platform.
Manifold-only swaps typically do not require tuning. Turbo and fueling changes may benefit from calibration to optimize response and shift strategy.
Many upgrades are designed to operate with factory systems when installed as directed. Always follow local regulations and the guidance on each product page.
Boost, EGT, and (if equipped) drive pressure during shakedown and early towing. Investigate any soot traces or whistle indicating pre-turbine leaks.
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