PDI Big Boss 3406E/C15/C16 Low Mount Exhaust Manifold

2 reviews
  • $1,750.00

Available for: 1994-2004 CAT 3406EC15C16 Engines

CAT manifold CARB EO# D773-2

Key Benefits

  • 20% increase in airflow over stock
  • 75-100 degree cooling of EGTs
  • Made in the USA

Warranty: 3 Year Unlimited Mile Warranty

We have designed our exhaust manifolds to maximize the exhaust air flow to reduce turbo lag time and cool exhaust temperatures. In the design of the manifold each port is analyzed and tested to provide a balanced flow to the turbocharger. Big Boss Exhaust Manifolds produce, on average, a 20% air flow increase over a stock manifold, cooling exhaust temperatures by 75-100 degrees. PDI manifolds are a big part in maintaining the best exhaust pressure to boost pressure ratios which will provide potential for increased fuel economy.

At PDI, we use only the best material for our products. We use a superior grade of High Silicon with Molybdenum Ductile Iron (HSMD) that eliminates weak points such as warping, cracking, and center divider failure from heat erosion. This material, combined with a redesign of the mounting surfaces, eliminates common failures due to a fatigued manifold.

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Customer Reviews
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Filter Reviews:
Michael C.
United States United States

About time...

I thought for years that the stock manifold was to small.i have a c16 catipiller.put a b manifold on it was better.but went through gaskets.now I put the bigboss manifold on an it cooled even more.like 200deg.im very pleased with this purchase.i you are in question bye one an try it.you will see the difference.Thanks agin pdi great product.

Baron F.
United States

PDI is ok with me

Manifold went together good and I had no issues!