Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
1999-2000 Mazda Miata MX5 1.8L 4-2-1 SS 1-5/8 Header XForce HS-9918Enhance Your Mazda MX 5's Performance with the XForce 4 2 1 Stainless Steel Header Upgrade your 1999 2000 Mazda MX 5 Miata's exhaust system with the XForce 4 2 1 Stainless Steel Header (Part Number: HS 9918). This high quality header is engineered to improve exhaust flow, resulting in enhanced engine performance and a more responsive driving experience. Key Features: Tri Y Design: The 4 2 1 configuration optimizes exhaust scavenging, leading to
Enhance Your Mazda MX-5's Performance with the XForce 4-2-1 Stainless Steel Header
Upgrade your 1999-2000 Mazda MX-5 Miata's exhaust system with the XForce 4-2-1 Stainless Steel Header (Part Number: HS-9918). This high-quality header is engineered to improve exhaust flow, resulting in enhanced engine performance and a more responsive driving experience.
Key Features:
- Tri-Y Design: The 4-2-1 configuration optimizes exhaust scavenging, leading to increased horsepower and torque across the RPM range.
- Stainless Steel Construction: Made from durable 304 stainless steel, this header offers excellent corrosion resistance and longevity.
- Precision Engineering: Mandrel-bent tubing ensures smooth exhaust flow, while CNC-machined flanges provide a secure, leak-free fit.
- Fuel Type: Gasoline
- California Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Specifications:
- Brand: XForce
- Type: Exhaust Header
- Items Included: Header, Gaskets, Mounting Hardware
- Material: 304 Stainless Steel
- Substrate Material: Stainless Steel
- Primary Tube Diameter: 1 5/8 inches
- Header Style: Tri-Y (4-2-1) One-Piece Design
- Collector Attachment: 2-Bolt Flange
- Finish: Natural Stainless Steel
- Features: Mandrel-Bent Tubing, CNC-Machined Flanges, Bolt-On Installation
- Fuel Type: Gasoline
- Placement on Vehicle: Front (Engine Bay)
- Manufacturer Part Number: HS-9918
- OE/OEM Part Number: HS-9918
Vehicle Compatibility:
This header is designed to fit the following Mazda MX-5 Miata models:
- 1999-2000 Mazda MX-5 Miata: 1.8L 4-cylinder engine
Note: While some references indicate compatibility with 1998-2005 models, it is recommended to verify fitment for models outside the 1999-2000 range.
Items Included:
- XForce 4-2-1 Stainless Steel Header (HS-9918)
- Gaskets
- Mounting Hardware
Installation Notes:
- Professional Installation Recommended: Due to the complexity of exhaust system modifications, professional installation is advised to ensure optimal performance and fitment.
- No Welding Required: Designed for a bolt-on installation using standard hand tools.
- Complete Kit: Includes all necessary gaskets and mounting hardware for a complete installation.
Upgrade your Mazda MX-5 Miata's exhaust system with the XForce HS-9918 header to experience improved performance, durability, and a more exhilarating driving experience.
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
4.0 ★★★★★
Based on 890 reviews
Sort
Product Reviews
★★★★★ 1
It’s a hard no from me
Color: Black, Size: Upgraded Base-1 Panel
I ordered two of these black, single screen panels several months ago. I ordered an additional four I needed a few days ago so I would have the total of 6 that I ended up needing. I did so by clicking on my past order (2 screens) item page and simply placed my recent order for 4 more. Two of the six screens have bolts that don’t fully screw down, such that one of each panel’s four points where the screen attaches to the two legs isn’t fully screwed down and flush. As a result, the screen doesn’t stay entirely vertical -It’s warped askew. Also, 3 of the six screens are different heights than the other 3. It’s clear to me that this company has ZERO QUALITY CONTROL, as there’s not anything that is even adjustable on these screens that leaves room for user error. Additionally, there are four black rubber circles that come in the “parts/screws” bag that don’t have corresponding installation instructions in the instruction manual. Just spend a little more and go with a better quality product somewhere else.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2025
★★★★★ 5
Great multipurpose wall
Color: Black, Size: Upgraded Base-1 Panel, Color: Black, Size: Upgraded Base-1 Panel
Perfect for her to hide behind
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
★★★★★ 5
Works For Desired Use
Color: Black, Size: 4 Panel-136‘’W-Round Pad
I recently purchased the Room Divider 6FT Folding Privacy Screens, 4 Panel Partition Room Dividers, and I must say, it has transformed the way I use my living space. The four-panel design is both elegant and functional, providing instant privacy without feeling bulky or overwhelming in my room.
Setting it up was a breeze; the folding mechanism is smooth, allowing me to adjust the configuration as needed—straight, angled, or zigzag. I particularly appreciate the sturdy build; the panels feel solid yet lightweight, making it easy to move around when I want to reconfigure my space.
Aesthetically, it’s a great addition. The neutral finish blends well with my décor, and the simple design doesn’t draw too much attention while still offering a sense of separation. It’s perfect for creating a temporary office corner, dividing a studio apartment, or even using it as a backdrop for online meetings.
If I had to point out a minor downside, it would be that the divider isn’t completely soundproof—so conversations can still carry through—but for visual privacy and space management, it’s excellent. Overall, I’m extremely satisfied and would recommend it to anyone looking for a versatile and stylish room divider.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
★★★★★ 5
True to size & Use a Drill
Color: Beige, Size: 3 Panel-102‘’-Round Pad, Color: Beige, Size: 3 Panel-102‘’-Round Pad
Love this! Works perfectly for where I wanted it. I did measure my room incorrectly and thought it would be smaller, thankfully it’s not and thankfully it’s not bigger than the room itself. I did like how the whole thing was move-able but it was a bit annoying so I just added extra clips to the left of the middle one and unscrewed the right of the middle at the bottom so it opens like a door, this did make it a bit flimsy but duck taping it to the wall as anchor it works.
100% recommend, but do suggest a drill and a second set of hands to put it together, due to its size it can be a bit difficult to maneuver putting together yourself.
Also if you have a clingy cat like I do, and think this will help keep them out, no, my cat who is very large can manage to squeeze underneath it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2024
★★★★★ 1
waste of money
Color: Black, Size: 4 Panel-136‘’W-Round Pad
This is a total waste of money. Its only going to free stand if you arent moving it. If you are planning on dividing a room, and then folding these for space and then dividing the room again, itll last a few days. The poles kept coming off of the screws that holds the fabric on the poles together. Was fixing this EVERY DAY. Finally got tired of doing this and just threw it out. Lot of money spent on garbage. Get a sheet room divider, or something that isnt cheaply made. Was simply making an office type space in a bedroom, to seperate the two areas for work, and folding it kept making the poles come off those twisted screws. just not worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026