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Find out why customers are loving the Big Boss Tuner!
The 7443K Installation Kit is a complete set of gaskets and seals needed to install our Big Boss Exhaust Manifold on Cummins ISX and X15 Engines.
Included with the kit:
For Use with Big Boss Exhaust Manifold PN 7443
Available for: 2010-2020 Cummins ISX and X15 Engines
*RELIABLE INSTALLS ALL PDI PRODUCTS. CALL TO MAKE APPOINTMENT*
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