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Description
XForce | 1 3/4" Header & High Flow Metallic Cat Kit | Jeep Grand Cherokee SRT8 6.4L | HS-JC12-KITXForce Header and High Flow Metallic Cat Kit Jeep Grand Cherokee SRT8 6. 4L (2011 2021) HS JC12 KIT Enhance the performance of your Jeep Grand Cherokee SRT8 with the XForce Header and High Flow Metallic Catalytic Converter Kit. Proudly Engineered for Power and featuring a Tuned 4 1 Design, these premium components deliver maximum exhaust flow to optimize horsepower and torque gains. Please note: This kit will only bolt up to an XForce cat back system
XForce Header and High Flow Metallic Cat Kit - Jeep Grand Cherokee SRT8 6.4L (2011 - 2021) - HS-JC12-KIT
Enhance the performance of your Jeep Grand Cherokee SRT8 with the XForce Header and High-Flow Metallic Catalytic Converter Kit. Proudly Engineered for Power and featuring a Tuned 4-1 Design, these premium components deliver maximum exhaust flow to optimize horsepower and torque gains. Please note: This kit will only bolt up to an XForce cat-back system and requires a vehicle tune after installation.
What's in the Box?
- XForce 1 3/4" 4-1 Tuned Headers
- Twin 3" 100 Cell High Flow Metallic Catalytic Converters
- Installation Gasket Kit
- Bolts and Hardware
Note: Professional installation and ECU remapping are mandatory to ensure peak performance and sensor compatibility.
Features:
Built for the demands of high-performance driving, this product offers the following features:
- 304 Stainless Steel Construction: High-grade material for superior durability and corrosion resistance.
- 4-1 Tuned Design: 1 3/4" primary pipes with a 3" outlet collector for smooth, high-velocity airflow.
- 100 Cell Metallic Cats: High-flow converters that reduce restriction while maintaining exhaust efficiency.
- Mandrel-Bent Tubing: Ensures consistent pipe diameter throughout bends to eliminate flow bottlenecks.
Specifications:
- Make: Jeep
- Model: Grand Cherokee SRT8
- Year Range: 2011 - 2021
- Engine: 6.4L HEMI V8 (ESG)
- Material: 304 Stainless Steel
- Primary Size: 44mm (1 3/4")
- Collector Size: 76mm (3")
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 XForce HS-JC12-KIT
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| JEEP | ||||||||
| JEEP | GRAND CHEROKEE | 03/2011 | 07/2021 | SUV | WK, WK2 | ESG | 6.4L | SRT8 | AWD |
| JEEP | GRAND CHEROKEE | 10/2012 | 01/2019 | Wagon | WK | ESG | 6.4L | SRT8 | AWD |
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:
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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
4.8 ★★★★★
Based on 1875 reviews
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Product Reviews
★★★★★ 3
Great insight on what happened at Blizzard but...
Format: Kindle
My main issue with the book is the lack of non-american stories that explained the bigger picture. As a former Blizzard dev, there's much more than what happened in Irvine and Korea, with Europe's office mentioned almost as a footnote, and nothing else from the other regional stories. Shame but I guess the book would've been double the size.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2025
★★★★★ 5
Insightful inside scoop of Blizzard
Format: Audiobook
An intriguing, well-written exploration of Blizzard’s history and its staff, from inception to modern day, and their design decisions, successes and failures along the way. I loved the many quoted insights, and learning more than just the surface level story that might be found on typical gaming news outlets.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 25, 2025
★★★★★ 5
This book really helps organize a process that is inherently chaotic
Format: Kindle
I'm working on a series of novels about a world of talking animals that grows up after humans die out from complications of climate change. Every species has its own culture. I got through the first book and well into the second before I realized that I needed some way to codify all the cultural details. I had lots of ideas, but no way to organize them, and as I moved towards the third book of the series, which would require creating seven or eight whole cultures, I was feeling overwhelmed. Creating Life and the free templates the author provides as a download are proving to be very useful tool. I look forward to reading the other two books in this series, too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2021
★★★★★ 5
An excellent book
Format: Kindle
I am a new fantasy fiction writer, and the detail of this book really helped me out very much. As I was searching Amazon for a book on this topic, this was one of the few that stood out. The author also offers continuous lessons on world building through his free newsletter, which I also find helpful. I highly recommend this book. Thank you Randy.
L.M. Montes
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Reviewed in the United States on January 6, 2020
★★★★★ 4
Both books in this series are worthwhile reference sources
Format: Kindle
Great books--I got both this one and Creating Places. I simply stumbled upon both books online when looking for something about plotting, and I bought them both, and am glad I did. I'm a fairly experienced writer in literary genres, but fantasy/sci-fi are different. The first book I got, Creating Places, was immediately useful as I was creating a land ringed with tall mountains, and I wondered about rainfall--this book answered my question about how mountains effect rainfall! It's not like you couldn't look some of this stuff up in other ways, but having it all in one place was very useful to me.
This one still had tips I was interested in, but I agree with the reviewer who noted it did feel like it was more about world building for world building's sake (at least in this book). Plenty of things didn't apply to what I'm writing, but if you use these as a handy reference--rather than a "how to" book, I still think there is a lot of use here. (Plus, when I bought it, the book was under $3, so I figured why not?)
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Reviewed in the United States on February 19, 2018