SKU: 36903949990

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

Sale price$807.98 Regular price$897.75
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Ships within 48 hours · Estimated delivery Jul 21 - Jul 26

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Description

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

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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 36903949990

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Chelsie
Omaha, US
★★★★★ 5
Best sunscreen ever!!!
This is the BEST SUNCREEN. It’s all we use-and I know, I know it’s expensive (standard is $30 a bottle) BUT it does go on sale quite often for like $20 ish which is what competitors run for and this is WAY cleaner. It’s made of a lot of organic ingredients and this one smells summery but they have unscented options too-that’s normally what I get! You can get spf 30 or 50 and they both work so well, never been burned wearing it. It’s a fine spray that goes on clear and dries quick-no white cast, no rubbing in. We live in a hot state that is sunny a lot of the year so we need a good sunscreen year round and this ticks all my boxes. This is the best product coola offers!! My entire family uses it.
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Reviewed in the United States on April 4, 2026
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Patricia G. Trujillo
Los Angeles, US
★★★★★ 5
Returning customer! :-)
Size: 2 Fl Oz (Pack of 1)
I love this product. The size is perfect, it smells amazing, and my skin has no reaction to it whatsoever (aside from what it’s supposed to do). So just a little background, my mother is Caucasian- my father is African American. I can either get a sun burn or get super tan- all depends on what products I use while under the sun. In the past, low quality products have given me a sunburn over a period of long sun exposure. Contrary to that, high quality products require me to apply less and will prevent me from sunburns. I do have to reapply, depending how much sun exposure I am getting. I originally purchased this product for a week long trip to Mexico with my boyfriend. I only bought 2 bottles- and we spent A LOT of time on the beach/ getting sun. We both used the sunscreen and STILL HAD LEFTOVERS after our trip (half a bottle still full). In addition, neither of us got sunburns- he got a nice sun kissed glow and I got a tan! It is TSA carry-on approved, very lightweight, and easy to use. I would recommend this product to anyone who asks! 10/10 will repurchase again :-)
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Reviewed in the United States on May 20, 2024
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Kindle Customer
San Leandro, US
★★★★★ 5
Works & smells great!
Size: 6 Fl Oz (Pack of 1)
Works & smells great!
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Reviewed in the United States on May 24, 2026
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lauren bensley
Waukegan, US
★★★★★ 5
Great smell
Size: 2 Fl Oz (Pack of 1)
Smells amazing, and goes on clear
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Reviewed in the United States on June 1, 2026
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Matthew Shesko
San Leandro, US
★★★★★ 5
“Holy Sun Protection, Batman! This Stuff Works!” 🦇🦸‍♂️
Size: 6 Fl Oz (Pack of 1)
The COOLA Organic Sunscreen SPF 50 Sunblock is the real deal. It goes on smooth, absorbs quickly, and doesn’t leave behind that greasy, chalky layer most sunscreens do. I put it to the test during a full day outdoors, and it held strong—no burns, no irritation, just solid protection. What makes it even better is the formula: not overloaded with harsh chemicals, but still highly effective. It feels more like skincare than sunscreen, which makes reapplying far less of a chore. If Batman and Robin swapped their capes for beach towels, this would be the sunblock in their utility belts—powerful protection, clean ingredients, and a formula that actually works when the heat is on. 🦇☀️ Would you like me to also create short funny one-liner summaries for each review (like quick taglines), so you have both the full review and a quick punchy line to use?
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Reviewed in the United States on August 19, 2025

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