aFe 46-40034 5.9L Cummins Ported Ductile Iron Exhaust Manifold

50% flow increase over stock!

1-Piece Construction:
The aFe 46-40034 5.9L Cummins Ported Ductile Iron Exhaust Manifold is constructed from durable cast-ductile iron with a reinforcing rib for maximum strength between the wall flanges at the ports.

Dual Auxiliary Ports:
2 exhaust gas temperature (EGT) probe ports are supplied for easy installation of gauges or testing equipment

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

Features:

• Outflows the factory exhaust manifold by 50%, improving performance and throttle response
• Ported flanges ensure an excellent seal and a clean, stylish look
• Thick wall flange design increases strength, eliminating warping and cracking
• Machined ports and merged runner design reduce exhaust backpressure, maximizing exhaust flow
• Dual 1/8″ NPT exhaust gas temperature ports are supplied for gauges or testing equipment
• All hardware and 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.

Orders for this item with shipping to California will automatically be canceled and refunded.