DPS Fummins Compound Turbos – Twin Turbo Kit for Ford Cummins Swaps

Fits All Ford Cummins Conversions – Including Excursion & OBS Builds

Get the most out of your Ford Cummins swap with the DPS Fummins Compound Turbo Kit. Whether you're building a Cummins-powered Excursion or an OBS Ford, this twin turbo system delivers high performance, lower EGTs, and OEM-like fitment—clearing the heater/AC box for easy installation on any Ford chassis.

Supporting power from 350 to 1300 HP, these kits provide fast spool-up, strong midrange torque, and excellent drivability. Ideal for towing, racing, sled pulling, or daily use.

Turbo Stage Options:

Stage 2.5: 625 HP – S362/68/.70 over S475

Stage 4: 675 HP – S363/68/.70 over S475

Stage 4.5: 675 HP – Ball Bearing S363/68/.70 over S480

Stage 5: 700 HP – S363/73/.80 over S475

Stage 5.5: 750 HP – Ball Bearing S363/73/.80 over S480

Stage 8: 1100 HP – S366/73/.80 over S480

Stage 8.5: 1100 HP – Ball Bearing S366/73/.80 over S480

Key Features:

Supports up to 1300 HP (with proper tuning and fuel upgrades)

Clears heater/AC box—engineered for Ford chassis

Includes performance 3-piece high-flow exhaust manifold

Kevlar/Nomex-lined silicone charge pipe for optimal flow & durability

Lowers EGTs by 250–450°F vs single turbo setups

Wastegated for adjustable boost control

Why DPS for Your Fummins Build?

Diesel Power Source is the only manufacturer offering compound turbos built specifically for Fummins swaps. Our kits are CFD-tested, CAD/CAM-designed, and precision-engineered to deliver cooler, denser boost air—maximizing combustion, torque, and spool-up without sacrificing fitment or reliability.

Boost Pressure & Engine Prep:

Use head studs if running over 45 PSI

Use fire rings for boost exceeding 55 PSI

Kits are built to safely handle 55+ PSI with supporting mods

Need a similar setup for your Chevy Cummins swap? Check out our Chummins Compound Kits.

Unlock serious performance in your Fummins project with DPS Compound Turbos—engineered for power, precision, and long-lasting reliability.

Fummins
5
Posted by Spence L on Sep 13, 2023

Thanks so much guys, fummins compounds fit like a glove. 97 f350 with 74k original miles , 6k on 24 valve Cummins & 47re swap ,shackle reversal , cross over steering and around 10 inch of lift .rolling on 37s .funny thing is I built this to pull our toy hauler. Canâ€™t wait to pull with compounds. By the way I have to tell you I was skeptical of a fummins compound kit due to the lack of space but your guys on the phone assured me this kit would work. Wish I would have found you guys before I first installed my Cummins with a single BD turbo
Fitment
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Posted by Mike J on Mar 31, 2023

These kits just fit and work with the HVAC box. I did have to modify the downpipe but I knew that going into the project. Dropped a 5.9L12V into a 2005 F350. Awesome power and torque, now just need to get the trans built.
Best compound kit for Ford/Cummins project
5
Posted by Derek T on Mar 2, 2023

This kit just fits! I went with the smaller 62/65 with s475 for my 2002 Excursion conversion. Best family tow vehicle. The kit fit and you told me I would have to modify the downpipe to fit and I just had a muffler shop do a custom fit downpipe and exhaust for me. We look forward to many more years of family camping with this new setup! Thanks DPS

VGT

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Fummins Compound Turbos for Ford Cummins Swap Kit Twin Turbos Fit All Years of Conversion