Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
XForce | Tri-Y Performance Exhaust Header | Mazda MX5 NB 1.8L 1998–2005 | HS-H9918XForce Tri Y Performance Exhaust Header Mazda MX5 NB 1. 8L HS H9918 Enhance the performance and engine efficiency of your Mazda MX5 NB with the XForce Tri Y Header. This high quality exhaust manifold is engineered to optimize exhaust scavenging through a specialized 4 2 1 Tri Y design, providing a noticeable improvement in mid range power and throttle response. Constructed from premium 304 stainless steel, these headers are built to withstand high
XForce Tri-Y Performance Exhaust Header - Mazda MX5 NB 1.8L - HS-H9918
Enhance the performance and engine efficiency of your Mazda MX5 NB with the XForce Tri-Y Header. This high-quality exhaust manifold is engineered to optimize exhaust scavenging through a specialized 4-2-1 Tri-Y design, providing a noticeable improvement in mid-range power and throttle response. Constructed from premium 304 stainless steel, these headers are built to withstand high temperatures and resist corrosion while offering a significant upgrade over the restrictive factory manifold. Whether you are hitting the track or enjoying a spirited Sunday drive, XForce headers provide the performance edge your MX5 deserves.
What's in the Box?
- 1x XForce 304 Stainless Steel Tri-Y Header Manifold
- Installation Gaskets
Features:
This product offers the following high-performance features:
- 4-2-1 Tri-Y Design: Optimized primary and secondary pipe lengths to increase torque and broaden the power band.
- Premium 304 Stainless Steel: High-grade material choice for superior longevity, heat resistance, and a polished performance look.
- Improved Scavenging: Reduces exhaust backpressure, allowing the 1.8L engine to breathe more freely.
- Mandrel-Bent Tubing: Ensures consistent pipe diameter throughout bends for smooth, laminar exhaust gas flow.
Specifications:
- Make: Mazda
- Model: MX5 (NB)
- Engine: 1.8L BP-ZE / BP-VE
- Part Number: HS-H9918
- Material: 304 Stainless Steel
- Design: 4-2-1 Tri-Y
Important Information
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
- Fitment Note: Designed primarily for manual transmission vehicles; automatic models will require modifications for successful fitment.
- Compliance Note: Requires an EGR valve delete kit for successful fitment on Australian-delivered vehicles.
- Engine Note: Fits 1998–2005 1.8L models only.
Vehicle Applications:
Vehicle Applications for HS-H9918
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| MAZDA | ||||||||
| MAZDA | MX5 | 1998 | 2000 | Convertible | NB Series 1 | 1.8L I4 | Manual | RWD |
| MAZDA | MX5 | 2000 | 2005 | Convertible | NB Series 2/3 | 1.8L I4 (VVT) | Manual | 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
4.8 ★★★★★
Based on 1311 reviews
Sort
Product Reviews
★★★★★ 2
Would not purchase again
Color: Gorilla, Size: Small
My yorkie tore it up in less than 5 minutes. Not as tough as I thought it would be.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
★★★★★ 5
Toughest toys around!!!
Color: Gorilla, Size: Small
After 30 years of shopping for dog toys & endless nights of sewing them back together, those days are over thanks to this brand of toys!
These get taken outside where they are brutally tugged, twisted, snatched, tossed and shaken to no end by our 58lb black mouth cur & 80lb Shepherd Retriever mix.
Most times they bring them back in the house but 2 of them they keep outside in the scorching Florida sun & rain & they're still tough as can be! The only damage these 2 toy punishers have managed to do is occasionally kill a squeaky inside (after about a year or more) & eventually the ones they will keep outside they have managed to get the black trim piece that goes around the outside edge to come off in a small section but it's still hanging on the toy flapping around smacking them in the face (which our black mouth cur love's,lol).
I first bought 2 small ones (yellow duck & pink pig) Christmas 2020. They held up so well that a few months later I bought the fox, dog & purple gecko. We also have the gorilla, snake, green gator (their favorite right now), orange gecko, a 2nd duck, raccoon & a few others I can't think of right now. The glorious thing is I haven't had to sew a single toy in over 2 years & I don't have to worry about my girls getting too rough with them when playing & the best part is not having to worry about them defluffing them & ingesting it or choking on it especially when I'm not at home. I don't have to pick them up before leaving to ensure they are safe. They can continue to terrorize the house playing with these even when we're not there & the only thing I have to worry about is what are they going to break when they sling one of these across the room. This brand is the only brand of dog toy we buy now. We have not had to throw any of them that we've bought away either & the cost is perfect for the value that you definitely get!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 8, 2022
★★★★★ 5
The only toy my dog wants
Color: Gator, Size: Large, Color: Gator, Size: Large
I have a 9 year old, 12 pound chihuahua, and this toy is everything to him. Ever since he was a tiny puppy, he’s liked toys that are at least as big as he is. Once I got him this, it was the only toy he’d play with. He carries it everywhere. He likes to chew on it, and sometimes pulls apart the threads. He LOVES to play tug of war with it, so the handle is awesome. It has so many squeakers, which is also a plus, and it holds up well for our little guy. We’ve probably had at least 10 of this same toy, we get him a new one about once a year when it starts to get worn. I worry that if they ever stop making it, he’ll be depressed lol. It’s been with him at all life stages and he doesn’t go anywhere without it. Really can’t ask for more when your dog loves a toy this much
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 1, 2025
★★★★★ 5
Lots of squeakers in this one!
Color: Gator, Size: Large
Our rescue dog is a power chewer so this one doesn't last long, but I still gave 5 stars because it's not advertised for power chewers, so I knew what we were getting when we bought it. So why did I buy this for our dog? The number of squeakers... the dog goes nuts for those and it makes the toy last longer because she will only play with the ones that still squeak.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 18, 2024
★★★★★ 1
NOT for aggressive chewers!
Color: Lion, Size: Medium
My aggressive chewer had destroyed this in 3 minutes! Chewed off the ears, and chewed apart the body to try to get to the squeaker - it was in the trash 5 minutes after I gave it to him! Yes, the seams are tough, but he easily chewed around them. Don’t buy this if your dog is an aggressive chewer!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
recommand products
Stainless Steel Chisel Polished 2mm 22 Inch Box Chain Necklace
80.99
Stainless Steel Chisel Polished 4.8mm Square Link Chain Necklace
96.99
Stainless Steel Chisel Polished Yellow Ip-Plated 2.4mm Box Chain Necklace
88.99
Stainless Steel & Rose Ip-Plated Stars Necklace
105.99
Stainless Steel Chisel Polished 2.4mm 24 Inch Rope Chain Necklace
80.99