CAT C7/3126 Exhaust Manifold T-4 1997-2007


Key Benefits

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

Available for

  • 1997-2007 Caterpillar 3126/C7 Acert Engine

* Required parts C7 Manifold Install Kit & C7 stage 1 Turbo

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PDI exhaust manifolds are designed to maximize the exhaust air flow to reduce turbo lag time and cool exhaust temperatures. PDI Exhaust manifolds are built using only the best materials which eliminates the most common failures in OEM parts like cracking, warping, heat erosion, etc…

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.

Not legal for sale or use in California.

* Required parts C7 Manifold Install Kit & C7 stage 1 Turbo

Additional information

Weight 21 lbs
Dimensions 29 × 7 × 7 in


Manifold Type


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