✨ New Arrivals Just Dropped!Explore
HomeStore

XForce | 1 7/8" Tuned-Length Headers & 3" Cat Kit | Ford Mustang GT S550 2018–2023 | H2-FM18-KITB

Product image 1
1 / 2

XForce | 1 7/8" Tuned-Length Headers & 3" Cat Kit | Ford Mustang GT S550 2018–2023 | H2-FM18-KITB

XForce 1 7/8" Tuned-Length Performance Header Kit - Ford Mustang GT S550 (Facelift) - H2-FM18-KITB

Unleash the full potential of your Ford Mustang GT S550 Facelift with the XForce Performance Header Kit. Engineered with precision for the 5.0L Coyote V8, this 4-1 tuned-length design features large 1 7/8" primary pipes that merge into a 3" outlet, drastically optimizing exhaust scavenging and flow. The kit is equipped with dual 3" 200-cell high-flow metallic catalytic converters, ensuring unrestricted airflow and significant performance gains in both horsepower and torque. Crafted from durable non-polished stainless steel, this system is built to withstand high-performance driving while delivering the aggressive, raw V8 soundtrack your Mustang deserves. Whether you are hitting the track or the street, XForce delivers the perfect blend of power, efficiency, and style.

What's in the Box?

  • 2x 1 7/8" Tuned-Length Stainless Steel Headers (Left & Right)
  • 2x 3" 200-Cell High-Flow Metallic Catalytic Converters
  • 3" Pipework after Collector Flanges
  • Installation Gaskets & Hardware

Features:

This product offers the following high-performance features:

  • 1 7/8" Tuned-Length Primaries: Meticulously engineered to maximize exhaust gas velocity and engine breathing for the Gen 3 Coyote V8.
  • Dual 3" 200-Cell High-Flow Cats: High-performance metallic cores provide far less restriction than factory units for maximum power delivery.
  • 4-1 Collector Design: Optimized for high-RPM flow and peak horsepower gains.
  • Stainless Steel Construction: Durable, high-grade stainless steel with a functional non-polished finish for long-term reliability.
  • Versatile Fitment: Precision-engineered to bolt up to both XForce cat-back systems and the OEM factory cat-back exhaust.

Specifications:

  • Make: Ford
  • Model: Mustang GT
  • Series: S550 (Facelift Models)
  • Engine: 5.0L Coyote V8 (Gen 3)
  • Part Number: H2-FM18-KITB
  • Material: Stainless Steel (Non-Polished)
  • Header Style: 4-1 Tuned-Length
  • Primary Size: 1 7/8"
  • Cat Size: Dual 3" (200-Cell Metallic)

Important Information

  • The image shown may not reflect the actual product; the system features a non-polished finish.
  • Shipping times may vary depending on destination and stock availability
  • Tuning: A professional ECU tune is required after installation to optimize engine performance and prevent check engine lights.

Vehicle Applications:

Make Model From To Body Series Engine Variant Drivetrain
FORD
FORD MUSTANG 2018 2023 Fastback / Convertible S550 (Facelift) 5.0L V8 GT / Mach 1 RWD

 

Warranty Information
Product Type Warranty Period
304 & 201 Stainless Steel Exhaust Systems 60 Months
Accessories 12 Months
Catalytic Converters 12 Months
Electronic Products (Including SmartBox) 12 Months
Mild Steel & 409 Stainless Steel Exhaust Systems 24 Months
Mild Steel Headers 12 Months
Stainless Steel Headers 24 Months
Universal 304 Stainless Steel Mufflers 24 Months
Universal Mild Steel & 409 Stainless Steel Mufflers 12 Months

Payment & Security:
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

$332.30

Original: $949.43

-65%
XForce | 1 7/8" Tuned-Length Headers & 3" Cat Kit | Ford Mustang GT S550 2018–2023 | H2-FM18-KITB

$949.43

$332.30

Product Information

Shipping & Returns

Description

XForce 1 7/8" Tuned-Length Performance Header Kit - Ford Mustang GT S550 (Facelift) - H2-FM18-KITB

Unleash the full potential of your Ford Mustang GT S550 Facelift with the XForce Performance Header Kit. Engineered with precision for the 5.0L Coyote V8, this 4-1 tuned-length design features large 1 7/8" primary pipes that merge into a 3" outlet, drastically optimizing exhaust scavenging and flow. The kit is equipped with dual 3" 200-cell high-flow metallic catalytic converters, ensuring unrestricted airflow and significant performance gains in both horsepower and torque. Crafted from durable non-polished stainless steel, this system is built to withstand high-performance driving while delivering the aggressive, raw V8 soundtrack your Mustang deserves. Whether you are hitting the track or the street, XForce delivers the perfect blend of power, efficiency, and style.

What's in the Box?

  • 2x 1 7/8" Tuned-Length Stainless Steel Headers (Left & Right)
  • 2x 3" 200-Cell High-Flow Metallic Catalytic Converters
  • 3" Pipework after Collector Flanges
  • Installation Gaskets & Hardware

Features:

This product offers the following high-performance features:

  • 1 7/8" Tuned-Length Primaries: Meticulously engineered to maximize exhaust gas velocity and engine breathing for the Gen 3 Coyote V8.
  • Dual 3" 200-Cell High-Flow Cats: High-performance metallic cores provide far less restriction than factory units for maximum power delivery.
  • 4-1 Collector Design: Optimized for high-RPM flow and peak horsepower gains.
  • Stainless Steel Construction: Durable, high-grade stainless steel with a functional non-polished finish for long-term reliability.
  • Versatile Fitment: Precision-engineered to bolt up to both XForce cat-back systems and the OEM factory cat-back exhaust.

Specifications:

  • Make: Ford
  • Model: Mustang GT
  • Series: S550 (Facelift Models)
  • Engine: 5.0L Coyote V8 (Gen 3)
  • Part Number: H2-FM18-KITB
  • Material: Stainless Steel (Non-Polished)
  • Header Style: 4-1 Tuned-Length
  • Primary Size: 1 7/8"
  • Cat Size: Dual 3" (200-Cell Metallic)

Important Information

  • The image shown may not reflect the actual product; the system features a non-polished finish.
  • Shipping times may vary depending on destination and stock availability
  • Tuning: A professional ECU tune is required after installation to optimize engine performance and prevent check engine lights.

Vehicle Applications:

Make Model From To Body Series Engine Variant Drivetrain
FORD
FORD MUSTANG 2018 2023 Fastback / Convertible S550 (Facelift) 5.0L V8 GT / Mach 1 RWD

 

Warranty Information
Product Type Warranty Period
304 & 201 Stainless Steel Exhaust Systems 60 Months
Accessories 12 Months
Catalytic Converters 12 Months
Electronic Products (Including SmartBox) 12 Months
Mild Steel & 409 Stainless Steel Exhaust Systems 24 Months
Mild Steel Headers 12 Months
Stainless Steel Headers 24 Months
Universal 304 Stainless Steel Mufflers 24 Months
Universal Mild Steel & 409 Stainless Steel Mufflers 12 Months

Payment & Security:
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

XForce | 1 7/8" Tuned-Length Headers & 3" Cat Kit | Ford Mustang GT S550 2018–2023 | H2-FM18-KITB | Exhaust Shop