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PDI BIG BOSS™ Exhaust Manifolds

PDI BIG BOSS™ Exhaust Manifolds

(17 products)
PDI Big Boss™ Exhaust Manifolds deliver cooler exhaust temperatures and increased engine performance. Made in the USA, we use high quality HSM material to eliminate OEM issues such as warping and heat erosion. Available for CAT, Cummins, Detroit and Paccar Engines.
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