3.7L / 4.0L Engine Upgrades
Gates Locking Fuel Cap: Fits Most Chrysler / Dodge / Jeep / Ram Models (1994-2026)
Gates
$24.11
- Unit price
- /per
Magnaflow California Grade Universal Catalytic Converter: Fits Most Dodge/Jeep 5.7L/3.8L/3.7L (07-17)
Magnaflow
$1,365.00
- Unit price
- /per
K&N Engineering Spin-On Oil Filter: Fits Most Dodge/Jeep/Ram 5.7L/3.7L/3.6L (09-25)
K&N Engineering
$10.99
- Unit price
- /per
K&N Engineering Oil Filter: Fits Most Dodge/Jeep/Ram 5.7L/3.7L/3.6L (09-13)
K&N Engineering
$17.99
- Unit price
- /per
Magnaflow Universal Catalytic Converter: Fits Most Dodge/Jeep 5.7L/3.7L (05-10)
Magnaflow
$1,277.00
- Unit price
- /per
Edge EvoHT2 Handheld Tuner: Fits Most GM / Ford / Dodge RAM Trucks
Edge
Regular price
$518.95
$499.95
4% off
- Unit price
- /per
Superchips F5 Flashpaq 50-State Legal Programmer: Fits Dodge / Ram / Chrysler (98-13)
Superchips
Regular price
$518.95
$499.95
4% off
- Unit price
- /per
Superchips Dashpaq+ Performance Tuner: Fits Most Dodge / Ram / Chrysler Models 2003-2014
Superchips
Regular price
$979.95
$922.95
6% off
- Unit price
- /per
MSD Ignition Blaster Dual Output Coil 3-Pack: Fits most Ram 1500 / Dakota / Durango / Jeep GC
MSD Ignition
$279.95
- Unit price
- /per
Flowmaster Super 50 Series Chambered Muffler: Dodge Dakota 1997-2010
Flowmaster
Regular price
$224.95
$199.95
11% off
- Unit price
- /per
Flowmaster 50 Series HD Chambered Muffler (REAR): Fits Dodge Ram / Jeep Grand Cherokee (94-14)
Flowmaster
Regular price
$312.95
$277.95
11% off
- Unit price
- /per
Flowmaster 40 Series Delta Flow Chambered Muffler: Dodge Dakota 1997-2007
Flowmaster
Regular price
$168.95
$149.95
11% off
- Unit price
- /per
Flowmaster 70 Series Chambered Muffler: Dodge Dakota / Durango / Ram (92-05)
Flowmaster
Regular price
$281.95
$249.95
11% off
- Unit price
- /per
Flowmaster 70 Series Chambered Muffler: Dodge Dakota 1997-2010
Flowmaster
Regular price
$281.95
$249.95
11% off
- Unit price
- /per
Flowmaster 40 Series Chambered Muffler: Dodge Dakota 1997-2010
Flowmaster
Regular price
$152.95
$135.95
11% off
- Unit price
- /per
Flowmaster 40 Series Delta Flow Chambered Muffler: Dodge Challenger 2014 / Dakota (97-07)
Flowmaster
Regular price
$190.95
$168.95
12% off
- Unit price
- /per
Flowmaster Super 44 Series Chambered Muffler: Dodge Challenger 2014 / Dakota (97-07)
Flowmaster
Regular price
$157.95
$139.95
11% off
- Unit price
- /per
Flowmaster Super 40 Series Chambered Muffler: Dodge Challenger (09-14) / Dakota (97-10)
Flowmaster
Regular price
$193.95
$171.95
11% off
- Unit price
- /per
Flowmaster Super 40 Series Chambered Muffler: Dodge Challenger (09-14) / Dakota (97-10)
Flowmaster
Regular price
$168.95
$149.95
11% off
- Unit price
- /per
Flowmaster Super 40 Series Chambered Muffler: Fits Dodge / Ram (92-05)
Flowmaster
Regular price
$168.95
$149.95
11% off
- Unit price
- /per
Earl's Perf Aluminum Oil Filter Block-Off: Fits Chrysler / Dodge / Jeep / Ram (08-20) - Black
Earl's Performance
Regular price
$37.67
$34.82
8% off
- Unit price
- /per
Earl's Perf Aluminum Oil Filter Relocation Kit: Fits Chrysler / Dodge / Jeep / Ram (08-20)
Earl's Performance
Regular price
$230.95
$212.95
8% off
- Unit price
- /per
American Brother Designs Custom Radiator Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025
American Brother Designs
$59.00
- Unit price
- /per
Pedal Commander FN TUNED Throttle Response Controller w/ Anti-Theft: Fits most Hemi Models
Pedal Commander
Regular price
$289.99
$279.99
3% off
- Unit price
- /per
Pedal Commander FN TUNED Throttle Response Controller w/ Anti-Theft: Dodge / Chrysler / Jeep (02-10)
Pedal Commander
Regular price
$289.99
$279.99
3% off
- Unit price
- /per
American Brother Designs Custom Washer Fluid Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025
American Brother Designs
$59.00
- Unit price
- /per
American Brother Designs Custom Coolant Reservoir Cap Cover: Chrysler, Dodge, Jeep & Ram 2005 - 2025
American Brother Designs
$59.00
- Unit price
- /per
Yukon Gear & Axle Front Bearing Installation Kit: Jeep Commander/Grand Cherokee 05-10 6.1L/5.7L/3.7L
Yukon Gear & Axle
$360.89
- Unit price
- /per
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Performance Upgrades for Your 3.7L V6 and 4.7L V8 Mopar Engines
The 3.7L V6 and 4.7L V8 engines serve as reliable, versatile Mopar powerplants found in various Dodge and Jeep models. These engines respond well to targeted performance upgrades that improve power delivery, throttle response, and durability while maintaining everyday drivability. Optimizing these engines with the right parts can enhance towing capability and add spirited driving performance.
Key Benefits of Upgrading Your 3.7L and 4.7L Engines
Both the 3.7L and 4.7L engines offer solid factory foundations, but bolt-on upgrades can unlock additional efficiency and power. Enhancements to intake and exhaust systems improve airflow, while ignition and tuning components refine combustion and throttle response. These improvements help your engine run stronger and more efficiently under various driving conditions.
- Improved torque for towing and hauling
- Enhanced throttle response and horsepower gains
- Better engine efficiency and reliability
- Maintains daily drivability with quality parts
Choosing the Right Performance Parts for Your Mopar V6 or V8
When selecting upgrades for the 3.7L or 4.7L, focus on components that complement the engine’s design and intended use. Cold air intakes and throttle body enhancements increase airflow, while exhaust headers and cat-back systems reduce backpressure. Upgrading ignition components and spark plugs ensures a stronger, more consistent spark. Finally, performance tuners and calibration tools optimize fuel and ignition timing for maximum efficiency.
Explore 3.7L and 4.7L Engine Upgrades at FastHemis
Whether you’re aiming to boost torque for towing or increase horsepower for spirited driving, FastHemis offers a curated selection of performance parts tailored to your 3.7L or 4.7L Mopar engine. Shop our collection to find intake kits, exhaust systems, ignition upgrades, and tuning solutions designed to unlock your engine’s full potential.