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Description
Pacemaker | Tri-Y Performance Headers | Holden VT-VY WH-WK V2 Gen III LS1 5.7L | PH5367 L/R VT-VY SERIES 1Pacemaker Tri Y Performance Headers Holden VT VY Series 1 & WH WK Series 1 Gen III LS1 PH5367 L R Upgrade your Gen III LS1 with the industry leading Pacemaker Tri Y headers. Precision engineered for Holden Commodore VT Series II through to VY Series I, as well as WH WK Statesman and V2 Monaro, these headers are designed to unlock significant torque and horsepower gains. The Tri Y design is the perfect choice for street performance, modified engines,
Pacemaker Tri-Y Performance Headers - Holden VT-VY Series 1 & WH-WK Series 1 Gen III LS1 - PH5367 L/R
Upgrade your Gen III LS1 with the industry-leading Pacemaker Tri-Y headers. Precision-engineered for Holden Commodore VT Series II through to VY Series I, as well as WH/WK Statesman and V2 Monaro, these headers are designed to unlock significant torque and horsepower gains. The Tri-Y design is the perfect choice for street-performance, modified engines, and supercharged applications, providing superior exhaust scavenging and a crisp V8 note.
Features:
This product offers the following high-performance features:
- Tri-Y Header Design: Optimized to deliver a massive boost in mid-range torque and overall engine efficiency.
- High-Performance Construction: Features 1⅝" (41mm) primary pipes and 1⅞" (48mm) secondary pipes leading to a 2½" (63mm) outlet.
- Enhanced Compatibility: Engineered for both naturally aspirated modified engines and supercharged setups.
- Clearance & Fitment: Designed to clear Power Steering and Air Conditioning systems while fitting both Manual and Automatic transmissions.
Product Specifications for PH5367 L/R
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 5367 | Gasket | DSF 138 |
| P/Steering | Yes | Primary Pipe | 1⅝" (41mm) |
| Air Con | Yes | Secondary Pipe | 1⅞" (48mm) |
| Oxy Sen | Yes | Outlet | 2½" (63mm) |
| Fitting Time | 2½ Hrs | Design | TRI-Y |
Important Notes:
- O2 Sensor Extensions: This kit does NOT include Oxygen Sensor Wiring Loom Extensions. These are required for VY Series II, VZ, WK Series II, and WL models.
- Fitment Warning: Will NOT fit All Wheel Drive (AWD) models (Adventra or Cross 8). Refer to PH 5366 for AWD applications.
- Series Compatibility: Specifically for VT-VY Series 1 and WH-WK Series 1. Later series require specific kits with extensions.
Important Information
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
Vehicle Applications:
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| Holden | Commodore / Calais | 1999 | 2004 | Sedan / Wagon / Ute | VT II, VX, VU, VY (S1) | 5.7L Gen III LS1 | Manual & Auto | RWD |
| Holden | Statesman / Caprice | 1999 | 2004 | Sedan | WH, WK (Series 1) | 5.7L Gen III LS1 | Manual & Auto | RWD |
| Holden | Monaro | 2001 | 2004 | Coupe | V2 | 5.7L Gen III LS1 | Manual & Auto | RWD |
Warranty Information
| Product | Warranty Period |
|---|---|
| Pacemaker Headers | Two (2) years. |
| Pacemaker King Brown 4x4 Exhaust systems | Five (5) years. |
| Pacemaker Sports exhaust systems | Five (5) years. |
| Fabrication products and accessories | One (1) year. |
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
4.6 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Soft, Gentle, and Perfect for Sensitive Skin
Size: 2T-3T, Unit Count: 76
We use Pull-Ups Skin Essentials as “sleeping underwear” for nap time and bedtime with my mostly potty-trained son. He has eczema and is very sensitive to many diaper brands, but these have been amazing! They’re super soft, fit comfortably, and sit well on his skin without causing any rashes or breakouts. They also absorb well — we haven’t had any issues with leaks. A fantastic option for little ones with sensitive skin!
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Reviewed in the United States on June 19, 2025
★★★★★ 5
No leaks or blowouts! Great for sensitive skin
Size: 3T-4T, Unit Count: 112
We swapped my son who has sensitive skin to these and its been about 3 weeks with zero issue. No leakage(I put them through heavy testing) and no blowouts so far!
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Reviewed in the United States on February 15, 2026
★★★★★ 5
Excellent quality and adequate price
Size: Size 4, Unit Count: 120, Size: Size 4, Unit Count: 120
Got it — I’ll write you a strong, natural, insight-rich review
I’ve been using these diapers consistently since my daughterwas born, and after several reorders, I feel confident sharing a detailed review for parents who are trying to decide.
First, what really stands out is how lightweight yet absorbent they are. They don’t feel bulky when my baby is wearing them, which makes a noticeable difference in comfort—especially during longer stretches like naps or overnight use. Despite being light, the absorbency is reliable and holds up well throughout the day.
One feature I truly appreciate is the quality of the inner filling. Unlike some other brands I’ve tried, the padding here does not become lumpy or uneven, even after extended wear. It stays evenly distributed, which not only improves comfort but also helps prevent leaks.
Comfort overall is excellent. The material feels soft against the skin, and I haven’t noticed any irritation or redness. Another big plus for me is that these diapers are completely free of any strong odors or artificial scents. Some brands have a noticeable smell right out of the package, which I personally don’t like—but these are refreshingly neutral.
Fit-wise, they stay in place well and don’t sag easily, even when full. That adds peace of mind, especially when we’re out or during overnight use.
I’ve reordered these multiple times now, which says a lot. They’ve been consistently reliable, comfortable, and well-made. Based on my experience, I would definitely recommend them to other parents looking for a dependable everyday diaper.
Overall, a solid choice that balances comfort, quality, and performance.
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Reviewed in the United States on March 20, 2026
★★★★★ 5
Huggies Little Movers Size 4 Diapers – Reliable, comfortable, and great fit
Size: Size 4, Unit Count: 150
Huggies Little Movers Size 4 diapers are excellent for active babies. They fit perfectly for babies between 22–37 lbs and allow great freedom of movement without leaks. The stretchy waistband and snug fit help keep the diaper in place, even when the baby is crawling, walking, or playing.
The absorbency is very reliable, keeping my baby dry both during the day and overnight. They are soft, gentle on the skin, and do not cause irritation. I also appreciate that they handle messes well without leaking.
The value pack with 150 diapers is very convenient and lasts a long time. Even though the packaging may vary, the quality is always consistent. Overall, these diapers are dependable and a great choice for growing, active babies.
Highly recommended
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2026
★★★★★ 5
Top tier quality
Size: Size 3, Unit Count: 168, Size: Size 3, Unit Count: 168
Let me start off by saying I love huggies. Number one recommended for babies.
I have use other diaper brands available in the market.I chose to try this Huggies diaper, and I am extremely pleased with my decision! It is remarkably soft. My precious babies spend a significant amount of time in them compared to other diapers brand. These diapers are nearly perfect in that regard. They fit snugly without being excessively tight. The design is truly effective in preventing blowouts and leaks. The diaper pad boasts excellent absorbency, but it is the double-lined barrier around the legs that primarily prevents leaks. Regarding the price, these diapers are slightly more expensive, but I believe they are worth every penny. You genuinely receive good value for your investment in these diapers.
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Reviewed in the United States on February 17, 2026