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Description
Xforce | 1 5/8" Tri-Y Header & High Flow Cat Kit | Holden Commodore VT-VZ LS1 V8 | HS-HV09B-KITHolden LS1 1 5 8" Primary Tri Y Header & High Flow Cat Kit HS HV09B KIT Unlock the performance of your LS1 powered Holden with the Xforce Tri Y Header Kit. This comprehensive exhaust upgrade is designed to improve low to mid range torque and overall horsepower by optimizing exhaust scavenging. Crafted from polished stainless steel, this kit provides a premium look and long lasting durability for your V8 Commodore or Calais. Note: O2 extension looms
Holden LS1 1 5/8" Primary Tri-Y Header & High-Flow Cat Kit - HS-HV09B-KIT
Unlock the performance of your LS1-powered Holden with the Xforce Tri-Y Header Kit. This comprehensive exhaust upgrade is designed to improve low-to-mid-range torque and overall horsepower by optimizing exhaust scavenging. Crafted from polished stainless steel, this kit provides a premium look and long-lasting durability for your V8 Commodore or Calais. Note: O2 extension looms are required for installation; tuning pipes must be used in place of catalytic converters when running the vehicle on a Dyno.
What's in the Box?
- 1x Set of 1 5/8" Tri-Y Headers (Left & Right)
- 2x 2.5" 100-Cell Metallic High-Flow Catalytic Converters
- All Necessary Gaskets and Bolts for Header-to-Cat Connection
Features:
This product offers the following high-performance features:
- Tri-Y Design: The 4-2-1 Tri-Y configuration is specifically engineered to enhance torque spread, making it an ideal choice for street-driven LS1 vehicles.
- 1 5/8" Primaries to 2.5" Outlets: Carefully sized primary pipes ensure optimal exhaust gas velocity, leading to improved throttle response and power gains.
- 100-Cell Metallic Cats: Includes high-flow metallic substrate catalytic converters that offer significantly less restriction than factory ceramic units while remaining durable under performance conditions.
- Polished Stainless Steel: Fully constructed from high-quality stainless steel with a polished finish for superior corrosion resistance and a show-quality engine bay appearance.
Specifications:
- Make: Holden
- Model: Commodore / Calais / Statesman
- Engine: 5.7L LS1 V8
- Header Type: Tri-Y (4-2-1)
- Primary Diameter: 1 5/8 Inch
- Outlet Diameter: 2.5 Inch
- Material: Polished Stainless Steel
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 HS-HV09B-KIT
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| HOLDEN | ||||||||
| Holden | Commodore | 1999 | 2000 | Sedan / Wagon / Ute | VT II | 5.7L LS1 V8 | All Models | RWD |
| Holden | Commodore | 2000 | 2002 | Sedan / Wagon / Ute | VX | 5.7L LS1 V8 | All Models | RWD |
| Holden | Commodore | 2002 | 2004 | Sedan / Wagon / Ute | VY | 5.7L LS1 V8 | All Models | RWD |
| Holden | Commodore | 2004 | 2006 | Sedan / Wagon / Ute | VZ | 5.7L LS1 V8 | All Models | 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 14 reviews
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Product Reviews
★★★★★ 5
Good value.
Style: Combo, Color: Black, Size: 1 Pack
I like the keyboard's light weight and compact size. The mouse is a little small. I have large hands and the mouse still works for me. The battery lasts a very long time on both the mouse and the keyboard. This is my second MK270 Combo. The first keyboard lasted over 10 years before the keys started sticking. The mice don't last near as long but for the price you can't go wrong. Note: I thought the keyboard was dead at first. When I checked the batteries, one was installed backward.
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Reviewed in the United States on June 12, 2026
★★★★★ 5
Comfortable and responsive
Style: Combo, Color: Black, Size: 1 Pack
The Logitech MK270 Wireless Keyboard and Mouse Combo has been an amazing addition to my setup! The keyboard feels comfortable and responsive while typing, and the mouse works smoothly with no lag. I love how easy it was to connect — just plug in the USB receiver and it’s ready to go. The battery life is impressive, and the wireless range is great for keeping my workspace clean and organized. Perfect for work, school, or everyday use!
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Perfect Mouse & Keyboard Combo!
Style: Combo, Color: Rose, Size: 1 Pack
I love this combo so much I bought one for home and one for the office. I’m very picky when it comes to a mouse and a keyboard. The clicking sound drives me crazy. This mouse is very quiet and the keyboard is easy to type on. I love that the keyboard includes shortcut keys (calculator, volume control, etc.) and they actually work unlike others. I also appreciate the windows key - makes it easy to lock your computer when you’re away. The color is so pretty! Absolutely love the shade of pink. Highly recommend this product! Logitech is hands down the best!
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Reviewed in the United States on April 25, 2026
★★★★★ 5
Reliable and lasts forever Best budget option
Style: Combo, Color: Black, Size: 1 Pack, Style: Combo, Color: Black, Size: 1 Pack
I had this same model a long time ago and it lasted forever, I only had to get a new one because I lost the USB receiver, so I know for a fact they are very durable. For the price, you can't beat the compatibility you just plug it in and it works instantly. The appearance is very simple, it's not the most attractive or pretty keyboard since it has no lighting or fancy features, but it's built to last. The noise level is fine for a membrane keyboard, not too loud. In terms of ergonomics, it feels comfortable enough for daily work and the color is just the standard black that goes with everything. The best part is the battery life, it lasts months without needing a change.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Exceptional
Size: 22, Size: 22
Great quality and price. Monitors are exceptional. Would buy again without question. Screens are quite resilient, great picture. I bought three and use them in a multi Monitor setup for my work laptop, I needed something to view wireing diagrams and scan tool information qt the same time. If your a Service Technician looking for a multi Monitor set up would strongly recommend this Monitor.
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Reviewed in the United States on April 25, 2026