

T3 Manifold for 12v Cummins 1989-98
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Upgrade your 1st, 2nd, or 3rd Gen Dodge Cummins with the DPS S300 Turbo — built for power, reliability, and unmatched airflow. Compatible with all 5.9 Cummins engines (12-valve and 24-valve), this bolt-on turbo upgrade is perfect whether you're replacing a worn-out unit or pushing for more horsepower.
Our S300 turbos are a proven choice for both street and performance builds. From towing to track days, they deliver smoother throttle response, reduced turbo lag, and excellent mid-to-high RPM boost.
Using this turbo in a compound setup? Contact us for spring-gate adjustments to prevent over-boost and protect your investment.
Looking for the best 5.9 Cummins turbo upgrade or considering a 6.7 Cummins swap? Our S300 series is a top-tier solution for 12V, 24V, and compound applications alike.
I can tell you that this 24v turbo is a killer upgrade for the cost. Bonus points is that it bolts right on.
This turbo improved the performance on my 3rd gen truck. This company has great customer service and I have been very happy with the product all around.
Looks solid good quality. Great price, fast shipping!
Best upgrade from my HE351 on my '05 5.9. Turbo spools great and more boost over the stock turbo. Should have bought a lot sooner.
I bought a 2005 Dodge Ram 2500, but didn't really look into all of the aftermarket parts. It ended up having a DPS Turbonator Turbo, DPS Extreme manifold, DPS Arctic Cooler, S&B intake, 5 inch exhaust, DPF delete and a Smarty Touch S2G. The programmer doesn't work right, but Smarty is sending the stuff out to fix it..The truck is a beast and will be even more so, whenever I get the programmer up and going again. I turned my boost up this morning; just did 2 rotations, and man did it really wake it up..It sounds freaking great.
These guys are the best went in and told them what I have and what my plans are to for my truck and they hooked me up with a turbo , exhaust manifold and turbo horn for my 3rd gen Cummins all I can say is wow