Take your Cummins ISX15 or X15 to the next level with the DPS S400 Turbo Conversion Kit — the ultimate upgrade for serious power and long-term reliability. This complete kit includes everything you need for a seamless conversion: a T6 performance manifold, S400 turbo (S475, S478, or S480 options), oil and coolant lines, gaskets, V-band adapters, and all the necessary hardware. Built for deleted trucks, this kit replaces the restrictive factory Holset VGT setup with a high-flow, heavy-duty S400/S
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Upgrade your Cummins X15 or ISX15 with a manifold built for real performance — and engineered around the factory pressure sensor that keeps your turbo system running right. Our DPS Non-EGR Exhaust Manifold comes pre-tapped for the OEM pressure sensor, ensuring accurate readings, safer temps, and proper turbo operation. No guessing, no adapters, no issues. With 22% better exhaust flow, cooler EGTs by 75–100 degrees, and a hydraulically pressed, leak-proof design, this manifold elevates reliabilit
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