The PDI Big Boss Turbo is made as an upgrade for most CAT engines with serial number prefixes 5EK, 6TS, 1LW, 1MM, 6NZ, 7CZ, and MBN. Quicker spool-up time gives you better throttle response and can help with fuel economy. Features our HSM type exhaust housing sized at 1.32. Made to support most stock engine horsepower to one with small modifications up to 600hp.
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