Available for:  Caterpillar 1994-2004 3406E, C15, C16 Engines

CAT Manifold CARB EO# D773-2

Big Boss CAT E-Model Exhaust Manifold Key Benefits

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

Warranty: 3 Year Unlimited Mile Warranty

Introducing Big Boss CAT E-Model Exhaust Manifold by PDI. 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 and 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.

A simple upgrade for your CAT engine! Fits most engines with serial number prefixes 5EK, 6TS, 1LW, 1MM, 6NZ, 7CZ, and MBN.