Much higher power for your First Gen Dodge Cummins 12V With Diesel Power Source's First Gen Compound Turbo Kit!

Fits 1988-1993 First Gen Dodge Cummins

Revolutionize your Ram Pickup with our exclusive First Gen Cummins Compound Turbo kit designed for intercoolers. Elevate your towing, racing, power, daily driving, and keep those EGT's low. Exclusively built for 1 gen Dodge Cummins trucks with intercoolers.

Choose from our extensive range of First Gen Compound Turbo Kit Options:

Stage 1 Max 550hp Stock Turbo over S475

Stage 2.5 Max 625hp S362/68/.70 over S475

Stage 4 Max 675hp S363/68/.70 over S475

Stage 4.5 Max 675hp S363/68/.70 Ball Bearing over S480

Stage 5 Max 700hp S363/73/.80 over S475

Stage 5.5 Max 750hp S363/73/.80 Ball Bearing over S480

Stage 8 Max 1100hp S366/73/.80 over S480

Stage 8.5 Max 1100hp S366/73/.80 Ball Bearing over S480

*Modifications required on intercooler hose for First Gen Dodge Cummins Trucks

Wastegated for boost adjustment

Performance 3-Piece Exhaust Manifold included

Super high flow air filter for optimal airflow

Cast hot pipe ensuring durability

Flexible steel braided oil supply lines for reliability

Stainless oil drain lines for efficiency

S400 & S300 Turbochargers for superior performance

Why Diesel Power Source?

Excellent factory-like fit with a bolt-on application, no cutting or fabrication needed

Lower EGT's by 250-450 degrees over a single turbocharger

Increase horsepower by 22% to 25% depending on your turbo selection

Computer Flow Model Tested for unmatched air and exhaust flow

Discover the DPS Difference:

More cool air enters the cylinders with dual staged compressors

Boost air is over 100 cooler per pressure made than from a single turbo

Boost pressure and exhaust drive pressures near or better than a 1:1 ratio

More complete combustion in the cylinders for increased power

Head Studs Recommended For:

1988-1993 1st Gen Cummins Engines over 48 psi boost

Fire rings for over 55 psi boost

Our kits are complete and include everything you need:

Both s300 and s400 turbos (except stocker)

Exhaust Manifold

All air, exhaust, and oil tubing

Air Intake and filter

Downpipe or Adapter to fit 4" Exhaust

Experience the ultimate upgrade with Diesel Power Source! Unleash the true potential of your First Gen Cummins. Order now and elevate your driving experience to a whole new level!

5.9 Compounds
5
Posted by Lance Dehne on Jun 19, 2023

I had the compound kit on my 5.9 Cummins for 4 years now. It made a huge difference in towing trailers. It spools up quick for when I need to get the camper or the trailer moving from a stop. Also, it does not take a lot of effort to make a pass on someone when I'm in a hurry. I would recommend this kit to anyone, whether they want to play or work.
Hello, I
5
Posted by Greg P on Mar 31, 2023

Hello,I do not normally comment on my truck part purchases, but I felt the quality of your kit was worth taking the time for. I recently purchased one of your stocker / S475 kits for my 06 ram. I have to say I am very impressed with the quality and packaging you guys do. This is my first compound turbo set up. I looked at many kits before purchasing yours. I looked at cheaper and more expensive. I had nearly talked myself into buying a cheaper kit. After receiving your kit I was immediately satisfied with spending the extra money on it. I opened the kit and was very impressed with the packaging alone. I thought to myself, if it performs half as well as it is packaged, I was going to be very happy. I had one issue after installation, but it turned out to be my fault for assuming. I assumed the tube from the output of the S475 to the input of my stock turbo was molded to the connector that uses V band clamp onto the S475. I had one extra clamp once installed and I thought it was odd, however I took the truck for a test ride and was very impressed with the faster spool up but the system got very loud and not as much boost as I had anticipated. I found out very quickly where the extra clamp went. After that mistake was remedied, the system is performing flawlessly. I am very satisfied with this kit. I look forward to putting it to the test towing in the Colorado mountains. I will be purchasing your intake for this same truck as well as probably upgrading my stock turbo to one of your new ball bearing turbos in the near future. I will not hesitate to recommend you guys to anyone who asks.
Towing
5
Posted by Michael Venter on Nov 26, 2022

Best thing I could have done sooner was do compounds for my 6.7Cummins! Stock fuel with some items not on the truck and it tows awesome. Steep grades and EGTs issues are a thing of the past! Great kit
98 12V
5
Posted by Kenny M on Oct 28, 2022

Hey fellas, did some upgrades after your compound set up. Hamilton stage 1 head, full manual valve body, 125 industrial injectors. Makes 683 hp and just under 1300tq at 7200 ft. Egts never get over 1100 no matter what Iâ€™m pulling or how I have my attitude adjusted. Tuned by grand by truck shop. This thing is a pulling beast. Thanks again.Â

VGT

First Gen Compound Turbo | First Gen Dodge Cummins