Choose a Store
  • Shop All
  • Replacement Parts
  • Performance Parts
  • Accessories
  • Oil & Fluids
  • Special Offers
  • Speed Perks
  • Advice & How-Tos
  • Project Guides
  • FAQ / Help Desk
Share
Product thumb
Product main large
Loading...
How Would You Like To Get This Item?

Store Pickup

Loading...Loading...Loading...

Same Day Home Delivery

Loading...Loading...Loading...

Home Delivery

Loading...Loading...Loading...
Loading...
Loading...

Product Information

Product Details
Part No. 46-40012
Warranty Details (2 YR REPLACEMENT IF DEFECTIVE)
Eliminate the costly exhaust manifold cracks prevalent in the factory exhaust manifold. The aFe Bladerunner exhaust manifold for the popular 5.9L Dodge Ram Cummins sets the new standard. Constructed out of cast 304 stainless steel with a reinforcing rib for strength along the flange and ultra-thick wall flange at the port. The Bladerunner exhaust manifold out flowed the factory exhaust by 23-percent improving exhaust flow, performance and throttle response. This manifold also features 2 EGT probe ports, thick wall design for increased strength (0.25" vs 0.15" for the stock unit), matched ports and has a merged runner design to maximize exhaust flow. Once you install this awesome exhaust manifold, you will feel improved turbo spool up times, improved throttle response and performance.

Product Features:
  • Outflows The Factory Manifold By 23%
  • Improved Performance And Throttle Response
  • Ported Flanges Ensure Excellent Seal And Stylist Look
  • Thick Wall Design Increases Strength Eliminating Warping/Cracking
Loading...
Loading...
Loading...
No results
Loading...
Feedback
TOP REPLACEMENT PARTS

Order Lookup

Help Desk

Store Locator

In Store Services

Mobile App

CUSTOMER SUPPORT
Accessibility Statement
Contact Us
Forgot Password
Help Desk
In Store Pickup
In Store Services
Order Tracking
Recall Information
Return Policy
Same Day Delivery
© 2025 Advance Auto Parts
Privacy Policy
Terms of Use
Site Map
ADVANCING A WORLD IN MOTION®