DDP ISBXX High Flow Injectors

From $712.50 to $1,330.00
Product Options
Power Level:
1998.5-2002 Dodge 5.9L Cummins
DDP (Dynomite Diesel)
$5 Price Beat Guarantee

The DDP ISBXX High Flow Injectors for your 98.5-02 Dodge 5.9L Cummins are hailed as the benchmark in 24 valve performance, DDP B series Injectors rule competitions internationally. Whether you want to make big power, or just get your 5th wheel to the camp ground a bit faster, DDP B series Injectors are the answer.

Your mileage will increase over stock with these Injectors. You will likely see 1-2 miles per gallon after your excitement wears off. (Gains not including high hp &  competition injectors)

Please note that some 98.5 trucks will need connector tubes.  If your engine serial numer is lesser than 56462598, you will be required to purchase them or your new injectors will not seal properly.


  • 1-Year Unlimited Mileage Warranty
  • 1-2 MPG Increase Commonly Seen
  • Competition Injectors Also Available

50HP: Excellent mileage, stock like smoke, quiets engine noise.
75HP: Maximum size for stock turbo.
100HP: Excellent mileage and response used up to 450RWHP
125HP: Upgraded turbo & fuel system. Biggest street injector recommended.
150HP: Twin turbos, some idle haze. Light towing only.
200HP: Lots of air required. Not for towing.

* Competition Injectors are built upon completion of race waiver.
** Super Mental Series are for off-road fuel, race or pulling truck only and are sold without warranty.

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(85 Ratings, 4 Reviews) Average Rating:
TANNER (CANADA) 2/12/2015 1:41 PM
I Put in the 100hp and there awesome but if i run high boost and let off quick with edge on hot the truck stalls and wont start i can pump start it i was told air was getting in lines i need a bigger turbo but injectors are awesome
badass injectors
big b (california) 5/8/2011 3:51 PM
got the 75 horse set and man did it awakenen a beast in my cummins, runs twice as fast leaves a huge cloud of smoke, the only downside is it can blow off the clamp on the connection from the intercooler to the intake horn at high boost levels
DDP injectors
hayfarmer (washington) 2/23/2010 11:51 AM
I bought the 75 hp injectors and wow i cant beleave how much smoother the motor idles and runs.im getting a little bit better fuel mileage as well and a small cloud of blck smoke.sweet set!
Josh (Norfolk VA) 9/8/2009 5:38 PM
First thing I noticed was how smooth and and quiet the cummins runs at idle then when I took it for a drive what a difference little bit of smoke but alot of power over stock best injectors on the market for sure