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5.9L / 6.7L Diesel Engine Upgrades

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674 Results

MBRP Filter Back Single Side Exit Exhaust System: Dodge Ram 2500 / Ram 3500 2007 - 2010
MBRP Filter Back Single Side Exit Exhaust System: Dodge Ram 2500 / Ram 3500 2007 - 2010

MBRP Filter Back Single Side Exit Exhaust System: Ram 2500 / 3500 11-12 6.7L Diesel/5.7L

MBRP

Regular price $586.75 $474.99 19% off

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per 

MBRP 5in Filter Back Single Side T409 Exhaust System: Dodge Ram 2500 / Ram 3500 2007 - 2010
MBRP 5in Filter Back Single Side T409 Exhaust System: Dodge Ram 2500 / Ram 3500 2007 - 2010

MBRP 5in Filter Back Single Side T409 Exhaust System: Ram 2500 / 3500 11-12 6.7L Diesel/5.7L

MBRP

Regular price $753.52 $609.99 19% off

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MBRP 5in Filter Back Single Side Exit T409 Exhaust: Dodge Ram 2500 (13-14) / Ram 3500 (13-14) Cummins 6.7L
MBRP 5in Filter Back Single Side Exit T409 Exhaust: Dodge Ram 2500 (13-14) / Ram 3500 (13-14) Cummins 6.7L

MBRP 5in Filter Back Single Side Exit T409 Exhaust: Ram 2500/3500 13-18 6.7L Diesel/6.4L/5.7L

MBRP

Regular price $574.40 $464.99 19% off

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MBRP Cat-Back Single Side Exit Exhaust: Dodge Ram 2500 / Ram 3500 2004 - 2007
MBRP Cat-Back Single Side Exit Exhaust: Dodge Ram 2500 / Ram 3500 2004 - 2007

MBRP Cat-Back Single Side Exit Exhaust: Dodge Ram 2500 / Ram 3500 2004 - 2007

MBRP

Regular price $778.22 $629.99 19% off

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per 

MBRP 5in. Cat-Back Single Side Exit: Dodge Ram 2500 / Ram 3500 2004 - 2007
MBRP 5in. Cat-Back Single Side Exit: Dodge Ram 2500 / Ram 3500 2004 - 2007

MBRP 5in. Cat-Back Single Side Exit: Dodge Ram 2500 / Ram 3500 2004 - 2007

MBRP

Regular price $772.05 $624.99 19% off

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MBRP 4in Cat-Back Single Side Exit Exhaust: Dodge Ram 2500 / Ram 3500 2004 - 2007 (Aluminum)
MBRP 4in Cat-Back Single Side Exit Exhaust: Dodge Ram 2500 / Ram 3500 2004 - 2007 (Aluminum)

MBRP 4in Cat-Back Single Side Exit Exhaust: Dodge Ram 2500 / Ram 3500 2004 - 2007 (Aluminum)

MBRP

Regular price $697.93 $564.99 19% off

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MBRP High-Flow Muffler Assembly: Dodge Ram 2500 / Ram 3500 2004 - 2007
MBRP High-Flow Muffler Assembly: Dodge Ram 2500 / Ram 3500 2004 - 2007

MBRP High-Flow Muffler Assembly: Dodge Ram 2500 / Ram 3500 2004 - 2007

MBRP

Regular price $389.11 $314.99 19% off

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MBRP Armor Lite Rear Frame Hanger Assembly: Dodge Ram 2500 / Ram 3500 1994 - 1997
MBRP Armor Lite Rear Frame Hanger Assembly: Dodge Ram 2500 / Ram 3500 1994 - 1997

MBRP Armor Lite Rear Frame Hanger Assembly: Dodge Ram 2500 / Ram 3500 1994 - 1997

MBRP

Regular price $80.28 $64.99 19% off

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Mishimoto Titanium Turbo Blanket: Dodge Ram 2500 (04-09) / Ram 3500 (04-07)
Mishimoto Titanium Turbo Blanket: Dodge Ram 2500 (04-09) / Ram 3500 (04-07)

Mishimoto Titanium Turbo Blanket (HOT SIDE): Dodge Ram 2500 / 3500 2004-2009 5.9L Diesel

Mishimoto

Regular price $161.00 $145.95 9% off

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Mishimoto Titanium Turbo Blanket: Dodge Ram 2500 / Ram 3500 2007 - 2010
Mishimoto Titanium Turbo Blanket: Dodge Ram 2500 / Ram 3500 2007 - 2010

Mishimoto Titanium Turbo Blanket (HOT SIDE): Dodge Ram 2500 / 3500 2008-2010 6.7L Diesel

Mishimoto

Regular price $282.00 $255.95 9% off

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Mishimoto High-Temperature Thermostat: Dodge Ram 3500 1999 - 2010
Mishimoto High-Temperature Thermostat: Dodge Ram 3500 1999 - 2010

Mishimoto High-Temp Thermostat 205°F: Dodge Ram 3500 1999-2007 5.9L / 6.7L Cummins

Mishimoto

Regular price $92.00 $83.95 9% off

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Mishimoto Low-Temperature Thermostat: Dodge Ram 2500 / Ram 3500 1999 - 2010
Mishimoto Low-Temperature Thermostat: Dodge Ram 2500 / Ram 3500 1999 - 2010

Mishimoto Low-Temp Thermostat 180°F: Dodge Ram 2500 / 3500 1999-2007 5.9L / 6.7L Cummins

Mishimoto

Regular price $92.00 $83.95 9% off

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Mishimoto Factory-Fit Boot Kit: Dodge Ram 2500 / Ram 3500 2003 - 2007
Mishimoto Factory-Fit Boot Kit: Dodge Ram 2500 / Ram 3500 2003 - 2007

Mishimoto Factory-Fit Silicone Boot Kit DuraCore: Dodge Ram 2500 / 3500 2003-2007 5.9L

Mishimoto

Regular price $348.00 $315.95 9% off

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Mishimoto Factory-Fit Boot Kit: Dodge Ram 2500 / Ram 3500 2007 - 2009
Mishimoto Factory-Fit Boot Kit: Dodge Ram 2500 / Ram 3500 2007 - 2009

Mishimoto Factory-Fit Silicone Boot Kit DuraCore: Dodge Ram 1500 / 2500 / 3500 2007-2009 6.7L

Mishimoto

Regular price $363.00 $329.95 9% off

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5.9L Magnum & 6.7L Cummins Diesel Engine Upgrades for Torque and Reliability

The 5.9L Magnum V8 and 6.7L Cummins inline-6 are iconic diesel engines celebrated for their torque, towing strength, and durability. Whether you own a classic Ram with the 5.9L or a modern heavy-duty Ram powered by the 6.7L Cummins, upgrading these engines with diesel-specific performance parts can significantly enhance power delivery and dependability.

How Diesel Engine Upgrades Improve Your 5.9L and 6.7L Performance

Diesel engines like the 5.9L Magnum and 6.7L Cummins thrive on torque and efficiency. Upgrades focused on intake airflow, exhaust flow, and fuel delivery optimize combustion and turbocharger response. These improvements translate to stronger towing capability, better throttle response, and sustained power under load.

  • High-flow intake and exhaust systems reduce restrictions and improve turbo efficiency
  • Turbocharger and intercooler upgrades enhance boost control and charge air cooling
  • Fuel system enhancements ensure consistent fuel delivery for higher power demands
  • Performance tuning calibrates engine parameters for optimized power and reliability

Choosing the Right Upgrades for Your Diesel Engine Goals

When selecting upgrades for your 5.9L or 6.7L diesel, consider your primary use—whether it’s daily driving, heavy towing, or performance builds. Intake and exhaust modifications improve airflow, while turbocharger enhancements increase boost and efficiency. Fuel system upgrades become critical as power levels rise, and tuning ties all components together for smooth operation.

Maximize Your Diesel Engine’s Potential with FastHemis Upgrades

From intake manifolds and turbochargers to fuel system components and tuning tools, FastHemis offers a comprehensive selection of parts tailored to the 5.9L Magnum and 6.7L Cummins platforms. Explore our collection to find reliable, performance-driven upgrades that maintain the rugged durability these engines are known for.

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