aFe ( 46-40054) 6.7L Cummins Ported Ductile Iron Exhaust Manifold

49% Flow increase over stock!

One-Piece Construction:
This manifold is constructed of durable cast ductile iron with a reinforcing rib for maximum strength between the wall flanges at the ports.

Dual Auxiliary Ports:
Two Exhaust Gas Temperature (EGT) probe ports are supplied for easy installation of gauges or testing equipment.

Hassle-Free Installation:
6-port gaskets are included for a hassle-free installation.

Features:

• Outflows the factory exhaust manifold by 49%, improving performance and throttle response
• Cast-in EGR flanges allows retention of factory EGR system
• The thick wall flange design increases strength, eliminating warping and cracking
• The machined ports and merged runner design reduces exhaust backpressure, maximizing exhaust flow
• Dual 1/8″ NPT exhaust gas temperature ports (EGT) are supplied for gauges or testing equipment
• 6-port gaskets are included for a hassle-free installation

This device is not CARB exempt at this time and is not legal for sale in California or use on vehicles registered with the California Department of Motor Vehicles.