CAT C15 ACERT LOW MOUNT EXHAUST MANIFOLD

If you’re looking to improve airflow and reduce exhaust temperatures on your Caterpillar C15 Acert (2004.5–2010), the PDI Big Boss Exhaust Manifold is designed to deliver better performance, improved turbo response, and long-term durability.

PDI engineered this manifold to maximize exhaust airflow, helping reduce turbo lag and allowing the turbocharger to spool more efficiently. Each runner has been carefully analyzed and tested to ensure balanced exhaust flow into the turbo, improving overall engine efficiency.

Compared to factory manifolds, the PDI Big Boss design increases airflow by an average of 20%, while reducing exhaust gas temperatures by 75–100°F. Improved airflow and optimized exhaust pressure-to-boost pressure ratios can also contribute to better fuel efficiency and stronger engine performance.

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.

Available For

2004.5–2010 Caterpillar C15 Acert Engines

Key Benefits

• 20% increase in airflow over stock manifolds

• 75–100°F reduction in exhaust gas temperatures

• Helps reduce turbo lag and improve turbo response

• Maintains optimal exhaust pressure to boost pressure ratios

• Potential for improved fuel economy and engine performance

• 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

CARB EO# D-773-2

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, our shop can install the manifold for you as well.

For more information or help with any of your performance needs, call us at 972-921-4316.