SKU: 24504063795

1999-2000 Mazda Miata MX5 1.8L 4-2-1 SS 1-5/8 Header XForce HS-9918

Sale price$174.15 Regular price$193.50
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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:
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  • 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: 24504063795

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Donna M.
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★★★★★ 5
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Great toy, too bad my Shih Tzu is afraid of it. I love the way the movement is subtle and random.
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Reviewed in the United States on May 21, 2026
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Chelsea, US
★★★★★ 5
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My dog plays with this for hours!
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Reviewed in the United States on May 14, 2026
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Chelsea H.
Whiting, US
★★★★★ 4
I wouldn’t recommend this for strong chewers.
Color: Orange, Color: Orange
Is it fun? Sure. Was it easy to charge and set up? Yep. That being said, this toy kind of fell flat for me. It really didn’t do any big movements once charged that I expected it to, so that was a bummer. I initially got it for my dog, but my cats were more interested in this than my dog was. The battery does seem to last a long time and the motor is pretty quiet. I WOULD NOT recommend this toy for strong chewers as the material for this is a foam rubber and I don’t think it’s durable enough for strong chewers. While the material makes this ball extremely lightweight for more movement, a strong chewer would have this disintegrated in five minutes flat. My Dog is a super strong chewer. I don’t think I would feel comfortable leaving him unattended with this because I know he would destroy it.
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Reviewed in the United States on May 5, 2026
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Charlie
Dallas, US
★★★★★ 5
Interactive puppy fun
Color: Blue
Pups love this and I enjoy watching them have so much fun. Serious playtime followed by a well earned nap!
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Nala Nose Best 🐾
Carnegie, US
★★★★★ 3
Well-designed and quiet, but didn’t keep my dog interested
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My dog was interested in this at first, but she would lose interest after a few minutes and move on. I do like that it’s quieter than the hard plastic ball toys, and the charge lasts well. The internal charging port that twists closed is also a nice design feature. That said, it will occasionally turn on by itself, which can be a little surprising. Overall, it has some nice features, but it just didn’t keep my dog engaged.
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Reviewed in the United States on April 30, 2026

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