HEMI EXPERTS OF 20 YEARS

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3.7L / 4.0L Engine Upgrades

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228 Results

MSD Ignition Blaster Dual Output Coil 3-Pack: Fits Most Hemi Models
Joe Approved

MSD Ignition Blaster Dual Output Coil 3-Pack: Fits most Ram 1500 / Dakota / Durango / Jeep GC

MSD Ignition

Regular price $258.95 $250.95 Sale

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Go Rhino RC2 Mounting Brackets: Fits Most Dodge Ram Models (2002-2010)
Go Rhino RC2 Mounting Brackets: Fits Most Dodge Ram Models (2002-2010)
usa

Go Rhino RC2 Mounting Brackets: Fits Most Dodge 5.9L Diesel/5.7L/3.9L/3.7L (02-05)

Go Rhino

Regular price $81.89 $62.99 Sale

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Go Rhino Mounting Brackets for RC2 Bull Bars: Fits Most Dodge Ram Models (2006-2009)
Go Rhino Mounting Brackets for RC2 Bull Bars: Fits Most Dodge Ram Models (2006-2009)
usa
Go Rhino OE Xtreme Cab Length Side Step Brackets: Fits Most Dodge Ram Models (2002-2010)
Go Rhino OE Xtreme Cab Length Side Step Brackets: Fits Most Dodge Ram Models (2002-2010)
usa

Go Rhino OE Xtreme Cab Length Side Step Brackets: Fits Most Dodge (02-09)

Go Rhino

Regular price $201.49 $154.99 Sale

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Go Rhino OE Xtreme Cab Length Side Step Brackets: Fits Dodge / Ram (02-26)
Go Rhino OE Xtreme Cab Length Side Step Brackets: Fits Dodge / Ram (02-26)
usa

Go Rhino OE Xtreme Cab Length Side Step Brackets: Fits Most Dodge/Ram (09-25)

Go Rhino

Regular price $201.49 $154.99 Sale

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per 

Go Rhino HD Mounting Brackets for RB Running Boards: Fits Dodge / Ram (02-26)
Go Rhino HD Mounting Brackets for RB Running Boards: Fits Dodge / Ram (02-26)
usa

Go Rhino HD Mounting Brackets for RB Running Boards: Fits Most Dodge/Ram (09-25)

Go Rhino

Regular price $201.49 $154.99 Sale

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Go Rhino Dominator Extreme Mounting Brackets: Fits Ram 1500 / 2500 / 3500 (02-26)
Go Rhino Dominator Extreme Mounting Brackets: Fits Ram 1500 / 2500 / 3500 (02-26)
usa

Go Rhino Dominator Extreme Mounting Brackets: Fits Most Dodge/Ram (09-25)

Go Rhino

Regular price $201.49 $154.99 Sale

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Clevite Main Bearing Set: Fits Most Dodge Ram / Dakota / Durango / Jeep Grand Cherokee / Commander Models (2002-2010)
Clevite Main Bearing Set: Fits Most Dodge Ram / Dakota / Durango / Jeep Grand Cherokee / Commander Models (2002-2010)
Edge EvoHT2 Handheld Tuner: Fits Most GM / Ford / Dodge RAM Trucks

Edge EvoHT2 Handheld Tuner: Fits Most GM / Ford / Dodge RAM Trucks

Edge

Regular price $518.95 $499.95 Sale

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Earl's Performance Aluminum Oil Filter Block-Off: Fits Most Chrysler / Dodge / Jeep / Ram Models (2008-2020) - Black Anodized

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 Sale

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Flowmaster Super 40 Series Chambered Muffler: Fits Chrysler / Dodge (04-14)
Flowmaster Super 40 Series Chambered Muffler: Fits Chrysler / Dodge (04-14)
usa

Flowmaster Super 40 Series Chambered Muffler: Fits Chrysler / Dodge (04-14)

Flowmaster

Regular price $168.95 $149.95 Sale

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per 

Flowmaster Super 40 Series Chambered Muffler: Fits Dodge / Ram (92-05)
Flowmaster Super 40 Series Chambered Muffler: Fits Dodge / Ram (92-05)
usa

Flowmaster Super 40 Series Chambered Muffler: Fits Dodge / Ram (92-05)

Flowmaster

Regular price $168.95 $149.95 Sale

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Flowmaster Super 40 Series Chambered Muffler: Dodge Challenger (09-14) / Dakota (97-10)
usa

Flowmaster Super 40 Series Chambered Muffler: Dodge Challenger (09-14) / Dakota (97-10)

Flowmaster

Regular price $168.95 $149.95 Sale

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per 

Flowmaster 40 Series Delta Flow Muffler: Fits Chrysler / Dodge / Ram 1500 (04-14)
Flowmaster 40 Series Delta Flow Muffler: Fits Chrysler / Dodge / Ram 1500 (04-14)
usa

Flowmaster 40 Series Delta Flow Muffler: Fits Chrysler / Dodge / Ram 1500 (04-14)

Flowmaster

Regular price $168.95 $149.95 Sale

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per 

Flowmaster 50 Series Delta Flow Chambered Muffler: Dodge Challenger 2014 / Dakota (97-07)
Flowmaster 50 Series Delta Flow Chambered Muffler: Dodge Challenger 2014 / Dakota (97-07)
usa

Flowmaster 50 Series Delta Flow Chambered Muffler: Dodge Challenger 2014 / Dakota (97-07)

Flowmaster

Regular price $212.95 $188.95 Sale

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Flowmaster Super 44 Series Chambered Muffler: Dodge Challenger 2014 / Dakota (97-07)
usa

Flowmaster Super 44 Series Chambered Muffler: Dodge Challenger 2014 / Dakota (97-07)

Flowmaster

Regular price $157.95 $139.95 Sale

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per 

Flowmaster 40 Series Delta Flow Chambered Muffler: Dodge Challenger 2014 / Dakota (97-07)
Flowmaster 40 Series Delta Flow Chambered Muffler: Dodge Challenger 2014 / Dakota (97-07)
usa

Flowmaster 40 Series Delta Flow Chambered Muffler: Dodge Challenger 2014 / Dakota (97-07)

Flowmaster

Regular price $190.95 $168.95 Sale

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per 

Flowmaster 40 Series Chambered Muffler: Dodge Dakota 1997-2010
Flowmaster 40 Series Chambered Muffler: Dodge Dakota 1997-2010
usa

Flowmaster 40 Series Chambered Muffler: Dodge Dakota 1997-2010

Flowmaster

Regular price $152.95 $135.95 Sale

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per 

Flowmaster Flow FX Muffler: Dodge Dakota 1997-2010
Flowmaster Flow FX Muffler: Dodge Dakota 1997-2010
usa

Flowmaster Flow FX Muffler: Dodge Dakota 1997-2010

Flowmaster

Regular price $112.95 $99.95 Sale

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per 

Flowmaster Super 50 Series Chambered Muffler: Fits most Chrysler/Dodge 04-13
Flowmaster Super 50 Series Chambered Muffler: Fits most Chrysler/Dodge 04-13
usa

Flowmaster Super 50 Series Chambered Muffler: Fits most Chrysler/Dodge 04-13

Flowmaster

Regular price $224.95 $199.95 Sale

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per 

Flowmaster 70 Series Chambered Muffler: Dodge Dakota 1997-2010
Flowmaster 70 Series Chambered Muffler: Dodge Dakota 1997-2010
usa

Flowmaster 70 Series Chambered Muffler: Dodge Dakota 1997-2010

Flowmaster

Regular price $281.95 $249.95 Sale

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per 

Flowmaster 50 Series HD Chambered Muffler (REAR): Fits Dodge Ram / Jeep Grand Cherokee (94-14)
Flowmaster 50 Series HD Chambered Muffler (REAR): Fits Dodge Ram / Jeep Grand Cherokee (94-14)
usa

Flowmaster 50 Series HD Chambered Muffler (REAR): Fits Dodge Ram / Jeep Grand Cherokee (94-14)

Flowmaster

Regular price $312.95 $277.95 Sale

Unit price
per 

Flowmaster 40 Series Delta Flow Chambered Muffler: Dodge Dakota 1997-2007
Flowmaster 40 Series Delta Flow Chambered Muffler: Dodge Dakota 1997-2007
usa

Flowmaster 40 Series Delta Flow Chambered Muffler: Dodge Dakota 1997-2007

Flowmaster

Regular price $168.95 $149.95 Sale

Unit price
per 

Flowmaster 40 Series Chambered Muffler: Fits Chrysler / Dodge (04-13)
Flowmaster 40 Series Chambered Muffler: Fits Chrysler / Dodge (04-13)
usa

Flowmaster 40 Series Chambered Muffler: Fits Chrysler / Dodge (04-13)

Flowmaster

Regular price $152.95 $135.95 Sale

Unit price
per 

Flowmaster 40 Series Chambered Muffler: Fits Chrysler / Dodge / Ram (04-14)
Flowmaster 40 Series Chambered Muffler: Fits Chrysler / Dodge / Ram (04-14)
usa

Flowmaster 40 Series Chambered Muffler: Fits Chrysler / Dodge / Ram (04-14)

Flowmaster

Regular price $114.95 $101.95 Sale

Unit price
per 

DiabloSport 9050 - Trinity T2 MX Vehicle Monitor
DiabloSport 9050 - Trinity T2 MX Vehicle Monitor

DiabloSport 9050 - Trinity T2 MX Vehicle Monitor

Diablo Sport

Regular price $771.95 $653.95 Sale

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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.

SELECT YOUR VEHICLE