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USD 510
Part #: BD1045947

BD-Power 1045947 Exhaust Pulse Manifold

1998.5-2002 Dodge 5.9L Cummins
Part #: BD1045947
★★★★★ ★★★★★ 8 Reviews
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The BD-Power 1045947 Exhaust Pulse Manifold features a heavy-duty multi-piece design to eliminate manifold cracks in your 1998.5-2002 Dodge 5.9L Cummins. The single piece design of the factory exhaust manifold is prone to cracks which causes exhaust leaks that can rob you of power. The BD-Power Exhaust Pulse Manifold is cast from high silicon ductile iron, and features an expansion joint to allow the manifold to expand and contract without cracking. 

As the name would imply, these manifolds are "pulse tuned" to assist in combustion chamber evacuation and increased exhaust flow. The result is quicker turbo spool-up, reduced backpressure, increased power, and better fuel economy. Great for stock, and performance applications. Pre-drilled and tapped for pyrometer probe.


  • Expansion Joint Eliminates Cracking 
  • Pulse-Tuned For Maximum Performance
  • Cast From Durable, High-Silcon Ductile Iron 
  • Replaces OE Part# 3946036
Gaskets and replacement bolts not included. See related items below.
In non-pickup applications such as motorhomes, please use OE number above to cross reference proper applications.


  • MFG. Number 1045947
  • Manufacturer Name BD-Power
  • Shipping Weight 24.00 lb.
  • Shipping Length 27 in.
  • Shipping Width 7 in.
  • Shipping Height 5 in.
  • Fuel Type Diesel
  • UPC 019025018884
  • Prop 65 WARNING: Cancer & Reproductive Harm -


★★★★★ ★★★★★
4.5/5 Stars out of 8 Reviews
BD1045947 Review
(Unknown) | January 23rd, 2008
I installed a BD-Power Exhaust Pulse Manifold on my 2002 RAM 2500 HO 6spd. I have a stock HX35 turbo. I am so far satisfied with the manifold and have seen a quicker mid-range turbo spool up (after 5psi, it increases rapidly to max). I have also noted about 60 - 100 degree F less EGT. I was a little disappointed in that you only receive two of the stainless cap head bolts (and washers) for the manifold instead of the 12 that are depicted in the photo (you will reuse the stock bolts). You also get two stainless cap head bolts (and washers) for the turbo housing which replaces two nuts. I was unable to install the manifold exactly per the directions since I could not remove the lower aft nut from the turbo housing/manifold flange with the turbo still in the engine compartment as described in the installation directions. The nut is located in a recess on the turbo housing under the wastegate stem and was too tight to remove with an open end wrench (the only thing I could get on the nut). I instead had to remove the turbo and the manifold as an assembly and dismantle on the workbench. This was not a huge undertaking; however, it was not exactly per the procedure. Overall, this is a pretty good product for the money.
exhaust maniflod
(MD) | September 7th, 2009
just added my new bd-manifold..on my 03 dodge, it made a big power change than stock, lowerd my egts by about 100-200 degress. good work bd!!!!
(Riverbank, Ca) | January 11th, 2011
I just had this installed on my truck, and I love it. I immediately noticed quicker turbo spool, better acceleration, and lower EGT's. I used to have to wait a long time for the EGT's to cool down to save the turbo, now it cools down to around 300 degrees in a matter of a few seconds instead of close to a minute or more in the heat. On the freeway the AVG Econ went up to 19+ right away. I also noticed that it smokes less. I have an 06 5.9 with a Smarty, and intake and exhaust.
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Questions and Answers

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Most Popular Questions

Will this manifold fit a 6.7L cummins?
View Staff Answer 

The 2003-2007 BD-Power Exhaust Pulse Manifold will fit the 6.7L, but not as a stock replacement. (The 5.9L manifold is often used when the DPF, EGR & VGT have been disabled and the turbo is upgraded.)

Will this fit a 96 12valve?
View Staff Answer 

BD item # BD1045980 will fit the 88-98 12V Cummins Pickups.

Which is the better manifold, stainless steel or the silicon ductile iron?
View Staff Answer 

Stainless is better beings it will not crack, but most aftermarket cast iron manifolds are jointed in separate locations to allow expansion and contractions. This eliminates the common issue with cast iron manifolds cracking.

what flange is on this header? I have a 12 valve cummins and am putting a new turbo on it but it uses a t4 flange and need a header with a t4 flange
View Staff Answer 

Most of the exhaust manifolds on our site are designed with the stock flange for the stock turbo, unless otherwise noted. We do actually offer T4 manifolds for your truck though. They are designed specifically for turbo swaps like the one you're doing. You can find them here:

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Emissions Notice

This product is not legal for sale or street use in California. Certain aftermarket products are subject to governmental emission standards regulated by the California Air Resources Board. In order for these products to be legal on a specific vehicle in California, the part number must receive a CARB Executive Order (EO) number. This number makes the part legal for use only on specific years, makes and models of vehicles. A decal with CARB EO number for these parts must be displayed in the engine bay to satisfy smog inspection requirements.