D&J Precision Machine Predator 6.4 Cummins Long Block. Our Predator 6.4 Cummins come fully assembled from the oil pan to the D&J Billet LED Valve Cover. All D&J Precision Machine Performance Long Blocks are blueprinted, and balanced, oil clearance measured, and rings are file...

 Billet 5.9 Cummins Grid Heater Delete    Our Billet 5.9 Cummins Grid Heater Delete is designed to optimize airflow into your engine and prevent boost leaks, enhancing overall performance for your 1998.5-2007 Dodge 5.9L Cummins Diesel. Key Features: Premium Material: Made from high-quality 6061...

This billet C2 hub addresses early failures of the Allison transmission's C2 clutch hub in high torque and high horsepower applications. Features: Made from Billet Steel 40% larger cross-sectional area of the throat 70% greater yield strength 35% greater tensile strength Includes modified P1...

The new Firepunk nitrous distribution block has a single -10 AN feed and four -8 AN outlets for a smooth transition of nitrous out to your solenoids.

Our 11-19 Allison master rebuild kit includes all the parts you need to rebuild your own transmission. These are the main components we use in all of our 750 horsepower rated transmissions. This kit includes a machined C3 plate to allow for additional clutches...

Our 06-10 Allison master rebuild kit includes all the parts you need to rebuild your own transmission. These are the main components we use in all of our 750 horsepower rated transmissions. This kit includes a machined C3 plate to allow for additional clutches...

Our 01-05 Allison master rebuild kit includes all the parts you need to rebuild your own transmission. These are the main components we use in all of our 750 horsepower rated transmissions. This kit includes a machined C3 plate to allow for additional clutches...

These control arms are designed to be a direct replacement for your factory control arms. They have a custom bore and width so that all factory hardware can be used. We use a rebuildable flex joint with a zinc coated chromoly housing and a...

Firepunk Billet Alternator Mount. These work with all common rail Cummins engines as well as deck plate engines.

So, you're ready to push the limit of your build and want to find an injector you can trust to take you to the podium? With our background in OE development, manufacturing and pioneers of the performance common rail fuel systems, you can trust...

This part can be used as a direct replacement for Bosch part number F 00R L00 591, as well as GM part number 12620532.  

This part can be used as a direct replacement for Bosch part number F 00R L01 027, as well as GM part number 12651989.  

So, you've made some power but now you want more? Do you still want good drivability while running more competitive events? Well, look no further than our 300% over fuel injectors!    The nozzles are enlarged using inhouse micro EDM (Electrical Discharge Machining) and...

So, you're ready to push the limit of your build and want to find an injector you can trust to take you to the podium? With our background in OE development, manufacturing and pioneers of the performance common rail fuel systems, you can trust...

Have your original or aftermarket injectors left you stranded? Are you looking for an increase in power without sacrificing drivability or reliability? Well, look no further than our 30% over fuel injectors!   At 30% over stock, these are an excellent upgrade for close...

One of the biggest pumps on the market with a track record to prove it. A single CP3 pump that will easily support 1200HP and in some applications have gone up to 1350+HP on fuel only! Don’t get caught with dual pump issues when...

Looking for a single CP3 pump that will support up 1000+HP and drive like stock on your L5P? Do you want the capability of more power without the worry of a pump controller failing, a custom belt breaking, mount cracking, or even a second...

Has your factory pump hit its limit, and you still need more pump capacity? Do you want the capability of more power without the worry of a multi-pump controller failing, a custom length belt breaking or a second pump to worry about? For applications...

Are you losing rail pressure from your original worn out Denso HP4 pump? Are you looking for a pump with a proven long haul track record?  From stock up to 650+HP our Sportsman L5P CP3 pumps are the best and most affordable solution for...

This pump can be used as a direct replacement for GM part numbers 12678993 and 12701094, Denso part number 294050-0701, Alliant Power part number AP54850 and AP54851, as well as International part number 6040608C91.