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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
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For Your Every Summer RSVP, with Code: SUMMER15
Description
XForce | 1-7/8" Headers & 3" Hi-Flow Cats | Ford Mustang GT S550 FM GEN 6 2014–2017 | H2-FM15KITXForce XForce Header and Cat Kit Ford Mustang GT S550 FM H2 FM15KIT Unleash the full potential of your Ford Mustang GT S550 with the Xforce Header Kit. This precision engineered 4 1 design features large 1 7 8" primary pipes that significantly reduce backpressure and improve exhaust scavenging for massive power and torque gains. Note: This kit only bolts directly to Xforce cat back systems and requires an ECU tune and PEX4178 loom extensions for
XForce XForce Header and Cat Kit - Ford Mustang GT S550 FM - H2-FM15KIT
Unleash the full potential of your Ford Mustang GT S550 with the Xforce Header Kit. This precision-engineered 4-1 design features large 1-7/8" primary pipes that significantly reduce backpressure and improve exhaust scavenging for massive power and torque gains. Note: This kit only bolts directly to Xforce cat-back systems and requires an ECU tune and PEX4178 loom extensions for installation.
What's in the Box?
- 1x 1-7/8" Tuned-length Headers (Pair)
- 2x 3" 200-Cell High-Flow Metallic Catalytic Converters
- All Necessary Installation Gaskets & Bolts
Features:
This product offers the following high-performance features:
- Tuned Length Primaries: 1-7/8" (47mm) primary pipes optimized for maximum exhaust flow and V8 performance.
- High-Flow Metallic Cats: Dual 3" 200-cell metallic converters ensure unrestricted airflow while maintaining essential emissions functionality.
- 409 Stainless Steel: Constructed from non-polished 409-grade stainless steel for high-heat durability and long-term reliability.
Specifications:
- Make: Ford
- Model: Mustang GT S550
- Year Range: 2014–2017
- Material: 409 Stainless Steel
- Pipe Size: 1-7/8" Primaries to 3" Outlet
Important Information
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
Vehicle Applications:
Vehicle Applications for H2-FM15KIT
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| FORD | ||||||||
| FORD | MUSTANG | 01/2015 | 07/2017 | Coupe | GEN 6 | 5.0L | V8 | RWD |
| FORD | MUSTANG | 12/2014 | 07/2017 | Convertible | FM, FN | MF8F | 5.0L | GT | RWD |
| FORD | MUSTANG | 12/2014 | 07/2017 | Coupe | FM, FN | MF8F | 5.0L | GT | RWD |
| FORD | MUSTANG | 08/2014 | 07/2017 | Convertible | FM | COYOTE | 5.0L | GT | RWD |
| FORD | MUSTANG | 08/2014 | 07/2017 | Coupe | FM | COYOTE | 5.0L | GT | 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:
- 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
4.5 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Great heat resistant tape
Size: 20mm X 33m
Good brand. Has great sticky power. Heat resistant and will not leave residue like some of those yellow tapes
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
★★★★★ 5
Best heat tape
Size: 10mm X 33m
I recently switched to this heat tape, and it has exceeded all my expectations. It is by far the best I’ve ever used, leaving no residue behind and no yellow coloring on the surface, unlike the brown heat tape I previously used. Since making the change, I’ve never considered purchasing anything else. The tape fits perfectly on my dispenser, which is a convenient feature. Additionally, it lasts quite a while, ensuring that I get my money’s worth. Overall, I am highly satisfied with this product and would recommend it to anyone looking for a reliable and efficient heat tape solution.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2025
★★★★★ 5
Wonderful
Size: 20mm X 33m
I love this kind of sublimation tape. I have used this kind for years, and of course different sizes depending on what I am making. When I first started out with sublimation, I use the amber sublimation tape that came with certain products that you start off buying. I started off with tumblers and used this amber tape to tape down my seams, wow, much to my discuss the amber tape left its color on my tumblers. I was discussed and it was just not one, but about 3 of them. It took me another 2 hours to peel off all the sublimation pictures and the amber tape to have to redo many many tumblers. I found out then, that this has happened to many other people (facebook, pintrest, etc) and switched over then to this tape and have never use another color but clear tape.
I have even had to take this tape off the sub pic when I did not get it lined up correctly and it did not tear the sub pic or do any other damage and I could reuse the same piece that I started with. Won't buy anything else
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 7, 2024
★★★★★ 5
Clear heat tape for sublimation
Size: 10mm X 33m
Clear heat tape used for sublimation that doesn't leave stain marks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
★★★★★ 4
Good width, doesn’t leave residue
Size: 20mm X 33m
I love this tape for the width and the fact that it doesn’t leave residue. It’s also easy to remove when you are peeling it. (For both tumblers and shirts)
The only issue I have is that when you are trying to tape tightly on a tumbler, it doesn’t always adhere tight so often times it snaps off of tumblers when pulling it to stick.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2023
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