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3.7L / 4.7L Exhaust Systems

Built for your 3.7L and 4.7L engine platforms, this collection features exhaust systems engineered to enhance your vehicle’s power delivery, throttle response, and exhaust tone. Whether you’re driving a Dodge, Jeep, or Ram equipped with these engines, you’ll find options designed to improve flow and overall performance without compromising reliability.

Explore a range of aftermarket exhaust components including headers, mid-pipes, and cat-back systems crafted to optimize sound and efficiency. These upgrades not only boost your engine’s breathing but also add aggressive styling cues under your vehicle.

  • Precision fit for 3.7L and 4.7L engines
  • Enhanced exhaust flow and sound quality
  • Durable materials built for performance and longevity
  • Designed to improve throttle response and driving experience

Shop exhaust system upgrades for your 3.7L or 4.7L vehicle at FastHemis.

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10 Results

Flowmaster American Thunder Exhaust System (Dual Rear Exit): Dodge Ram 4.7L V8 1500 2006 - 2008 (Aluminized Steel)
Flowmaster American Thunder Exhaust System (Dual Rear Exit): Dodge Ram 4.7L V8 1500 2006 - 2008 (Aluminized Steel)
usa
Flowmaster American Thunder Exhaust System (Dual Rear Exit): Dodge Ram 4.7L V8 1500 2006 - 2008 (Stainless Steel)
Flowmaster American Thunder Exhaust System (Dual Rear Exit): Dodge Ram 4.7L V8 1500 2006 - 2008 (Stainless Steel)
usa
Flowmaster American Thunder Exhaust System (Dual Side Exit): Dodge Ram 4.7L / 5.9L V8 1500 2002 - 2005
Flowmaster American Thunder Exhaust System (Dual Side Exit): Dodge Ram 4.7L / 5.9L V8 1500 2002 - 2005
usa

Flowmaster American Thunder Exhaust System (Dual Side Exit): Dodge Ram 4.7L / 5.9L V8 1500 2002 - 2005

Flowmaster

Regular price $1,037.95 $828.95 20% off

Unit price
per 

Flowmaster FloxFX Exhaust System: Jeep Grand Cherokee 4.0L / 4.7L 1999 - 2004
Flowmaster FloxFX Exhaust System: Jeep Grand Cherokee 4.0L / 4.7L 1999 - 2004
usa

Flowmaster FloxFX Exhaust System: Jeep Grand Cherokee 4.0L / 4.7L 1999 - 2004

Flowmaster
5.0 (2)

Regular price $393.95 $314.95 20% off

Unit price
per 

Flowmaster Force II Exhaust System: Dodge Durango 1998 - 2003 (4.7L, 5.2L & 5.9L V8)
Flowmaster Force II Exhaust System: Dodge Durango 1998 - 2003 (4.7L, 5.2L & 5.9L V8)
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usa

Flowmaster Force II Exhaust System: Dodge Durango 1998 - 2003 (4.7L, 5.2L & 5.9L V8)

Flowmaster

Regular price $633.95 $505.95 20% off

Unit price
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JBA Cat-Back Exhaust System: Dodge Durango 2004 - 2008 (4.7L V8 & 5.7L Hemi)
JBA Cat-Back Exhaust System: Dodge Durango 2004 - 2008 (4.7L V8 & 5.7L Hemi)
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JBA Cat-Back Exhaust System: Dodge Durango 2004 - 2008 (4.7L V8 & 5.7L Hemi)

JBA

Regular price $544.15 $494.68 9% off

Unit price
per 

MagnaFlow High Flow Catalytic Converter: Jeep Grand Cherokee 2005 - 2006 4.7L
MagnaFlow High Flow Catalytic Converter: Jeep Grand Cherokee 2005 - 2006 4.7L
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usa
MagnaFlow High Flow Catalytic Converter: Jeep Grand Cherokee 2007 - 2010 3.7L
MagnaFlow High Flow Catalytic Converter: Jeep Grand Cherokee 2007 - 2010 3.7L
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usa
MBRP Cat-Back 3" Single Side Exhaust System: Dodge Dakota 2005 - 2007 (3.7L / 4.7L)
MBRP Cat-Back 3" Single Side Exhaust System: Dodge Dakota 2005 - 2007 (3.7L / 4.7L)

MBRP Cat-Back 3" Single Side Exhaust System: Dodge Dakota 2005 - 2007 (3.7L / 4.7L)

MBRP

Regular price $568.22 $459.99 19% off

Unit price
per 

Optimize Your 3.7L and 4.7L Engine Performance with Premium Exhaust Systems

Enhance your Dodge, Jeep, or Ram equipped with 3.7L or 4.7L engines by upgrading to exhaust systems designed for improved power delivery and throttle response. This collection offers precision-fit components that boost exhaust flow and deliver a more aggressive sound without sacrificing durability.

What are the benefits of upgrading exhaust systems for 3.7L and 4.7L engines?

Upgrading your exhaust system improves the way your engine breathes, resulting in better throttle response and a more refined exhaust tone. Enhanced flow reduces backpressure, which can lead to smoother power delivery and a more engaging driving experience. These systems also add a performance-oriented look beneath your vehicle.

  • Improved exhaust flow for increased efficiency
  • Enhanced throttle response and power delivery
  • Distinctive exhaust sound tailored to your engine
  • Durable construction for long-lasting performance

How do I choose the right exhaust components for my 3.7L or 4.7L vehicle?

Selecting the right exhaust parts depends on your goals, whether it’s maximizing sound, performance, or maintaining a balance of both. Headers improve scavenging and flow early in the system, mid-pipes optimize the transition, and cat-back systems refine sound and final flow. Consider your vehicle’s make and model to ensure proper fitment and compatibility.

What should I expect after installing a 3.7L or 4.7L exhaust system upgrade?

After installation, you’ll notice a more responsive throttle and a deeper, more aggressive exhaust note that enhances your driving experience. These upgrades maintain reliability while adding a performance edge. Explore the full range of exhaust systems and components for your 3.7L or 4.7L engine at FastHemis to find the perfect fit for your build.

SELECT YOUR VEHICLE