CAT 3406E/C15/C16 CHROME EXHAUST MANIFOLD

If you’re looking to upgrade the exhaust side of your CAT 3406E, C15, or C16, the PDI Big Boss Chrome Exhaust Manifold is designed to improve airflow, reduce exhaust temperatures, and enhance turbo response.

This performance manifold is engineered to maximize exhaust airflow, helping the turbocharger spool faster while reducing restriction in the exhaust system. Each runner has been carefully analyzed and tested to ensure balanced exhaust flow into the turbo, improving overall engine efficiency and drivability.

Compared to factory manifolds, the PDI Big Boss design increases airflow by an average of 20%, while lowering exhaust gas temperatures by 75–100°F. Maintaining a better exhaust pressure-to-boost pressure ratio can also help support stronger performance and potential fuel economy gains.

Built for durability, PDI manufactures these manifolds using High Silicon with Molybdenum Ductile Iron (HSMD). This premium material is designed to withstand extreme heat cycles while preventing common failures such as warping, cracking, and center divider erosion that can occur with stock manifolds over time. The redesigned mounting surfaces further improve strength and long-term reliability.

Product Name

CAT 3406E / C15 / C16 Chrome Exhaust Manifold

Available For

1994–2004 Caterpillar Engines

• 3406E

• C15

• C16

Key Benefits

• 20% increase in airflow over stock manifolds

• 75–100°F cooler exhaust gas temperatures

• Helps reduce turbo lag and improve turbo response

• Supports improved engine efficiency and potential fuel economy gains

• Made in the USA

Premium Construction

• Built from High Silicon Molybdenum Ductile Iron (HSMD)

• Designed to resist warping, cracking, and heat erosion

• Reinforced mounting surfaces for improved durability

Compliance

CAT Manifold CARB EO# D-773-2

Suggested Product

• E-Model Exhaust Manifold Install Kit

Warranty

3 Year Unlimited Mileage Warranty

At Redneck Diesel Performance, we carry parts that help your truck run cooler, spool faster, and stay reliable mile after mile. And if you'd rather have it handled professionally, we can install the manifold for you at our shop as well.