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Description
Pacemaker | 1⅞" Competition Tuned Headers | VT-VY Series 1 & WH-WK 5.7L LS1 | PH5363 L/R VT-VY SERIES 1Pacemaker Competition Tuned Headers VT VY Series 1 WH WK Series 1 5. 7L LS1 Gen III V8 PH5363 L R VT VY SERIES 1 Unleash maximum performance from your Gen III V8 with the Pacemaker PH 5363 Competition Tuned Headers. Specifically engineered for high output applications, these headers are designed for the Holden VT Series II through VY Series I Commodore and WH to WK Series I Statesman models equipped with the 5. 7 Litre LS1. Unlike standard street
Pacemaker Competition Tuned Headers - VT-VY Series 1 / WH-WK Series 1 5.7L LS1 Gen III V8 - PH5363 L/R VT-VY SERIES 1
Unleash maximum performance from your Gen III V8 with the Pacemaker PH 5363 Competition Tuned Headers. Specifically engineered for high-output applications, these headers are designed for the Holden VT Series II through VY Series I Commodore and WH to WK Series I Statesman models equipped with the 5.7 Litre LS1. Unlike standard street headers, the "Competition Tuned" design features massive 1⅞" (48mm) primary pipes leading into a large 3" (76mm) outlet, providing the high-volume exhaust flow required for heavily modified engines and supercharged applications. Proudly Australian-made and mandrel-bent, these headers ensure optimum exhaust pulse tuning and scavenging. This kit is a direct bolt-on for both manual and automatic transmissions while maintaining full clearance for essential engine accessories.
Features:
This product offers the following performance features:
- Competition Grade: Large 1⅞" (48mm) primary pipes designed for high-horsepower and supercharged LS1 engines.
- High-Flow Outlet: Features a 3" (76mm) outlet to minimize backpressure in performance builds.
- Tuned Design: Precision-engineered pulse-tuned lengths to maximize power and torque gains.
- Mandrel Bent: Ensures consistent pipe diameter throughout every bend for unrestricted exhaust velocity.
- System Compatibility: Engineered to clear Power Steering and Air Conditioning components.
- LS1 V8 Specific: Optimized for the 5.7 Litre Gen III LS1 engine across sedan, ute, and coupe bodies.
Product Specifications for PH 5363
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 5363 | Gasket | DSF 138 |
| Primary Pipe | 1⅞" (48mm) | Oxy Sensor | Yes |
| Outlet | 3" (76mm) | Fitting Time | 3 Hrs |
| P/Steering | Yes | Air Con | Yes |
Important Notes:
- Wiring 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 Limit: This part is for VY Series I only. For VY Series II or later, please refer to the specific Series 2 or VZ part numbers.
- AWD Exclusion: Will not fit All Wheel Drive (AWD) models (Adventra/Cross 8). Refer to PH 5366 for AWD applications.
- Application: Specifically designed for modified engines and supercharged setups.
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 / Crewman / Monaro | 1999 | 2004 | Sedan / Ute / Coupe | VT II, VX, VU, VY I, V2 | 5.7L LS1 V8 | Manual & Automatic | RWD |
| Holden | Statesman / Caprice | 1999 | 2004 | Sedan | WH, WK Series I | 5.7L LS1 V8 | Manual & Automatic | 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
4.0 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Cooling King-Size Pillows (used on a Queen pillows to tuck the extra in)
Color: Navy Blue, Size: 2 Pack King（20"X 36"）, Color: Navy Blue, Size: 2 Pack King（20"X 36"）
🛏️ Product Review: Cooling King-Size Pillows (used on a Queen bed)
⭐ The Good
• These are king-size pillows, which I actually love on a queen bed because I can tuck the ends into the fabric.
• The fabric feels slick and cool, but you don’t slip off of it.
• They feel cold to the touch right out of the package (which is wild).
• I sleep extremely hot and even run fevers at night due to a medical condition (literally 101–102° sometimes), and these pillows still stay cool where I lay my head.
• I’ve honestly never slept this well in my life.
• For the price, you cannot beat them, and they go on sale often.
• These beat any high-end version I’ve tried.
• If you sleep normal-temp and not lava-hot like me, you’re going to be VERY comfortable with these.
⚠️ The Bad
• The fabric does show crease lines.
• If wrinkles bother you, this might annoy you (doesn’t bother me personally).
🔧 What I’d Change / Tips for Care
• Don’t use fabric softener — it clogs the cooling fabric and ruins how it works.
• Wash with unscented detergent + a little vinegar.
• Dry on low heat only (do NOT dry on high if you want the fabric to keep working long-term).
✅ Final Thoughts
I will literally never not own these again.
If you sleep hot, night-sweat, or just want a pillow that actually stays cool — these are it.
10/10 recommend.
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Reviewed in the United States on February 17, 2026
★★★★★ 3
Love it but it stains
Color: Haze Blue, Size: 2 Pack Standard（20"X 26"）
I love these but had to knock some stars down for a single reason. They are soft, the material is somehow both substantial and airy at the same time, and a smooth, silky (not satin), cozy texture. The color was exactly as pictured. The envelope style works great to keep my pillows covered. The fabric lays perfectly. I love sleeping on this pillow case.
Took two stars off because every single atom of oil on my face stained it immediately and won't come out in the wash. Its not subtle. You can see anywhere my face has been, forever. I don't have some incredibly oily face or hair, I've never had this happen to another pillow case in my life.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Good buy
Color: Navy Blue, Size: Body（20"X 54"）
Nice and soft , well packaged and looks good. Kinda pillowcase you find in a luxury hotel
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Silky and Soothing
Color: Cream, Size: 2 Pack Queen（20"X 30"）
I thought I was getting 1 of the queen sized but I got 2. I got these for my Pomeranian's fuzzy pillow. He's always hot and these are very cooling and very good quality. He loves them and are very comfortable for him. They totally transformed his shaggy old pillow. I used the larger body pillow covers to replace the covers I had. They matched my bedspread perfectly. I use 2 body pillows along the exterior wall in my bedroom where there is cold coming through the floor in the winter. I'm sure I will enjoy them in the summer when it's hot too!
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Reviewed in the United States on January 10, 2026
★★★★★ 5
So soft and amazing quality
Color: 12 - Light Beige, Size: Twin
I can't tell you if they're cooling or not yet. The weather took a turn for the cold so I haven't put them on the bed yet. But the quality..omg it's exceptional! These are insanely soft! Not slippery like satin but not scratchy like percale. They're like the best of both worlds..light as satin but nicely weighty like percale. I don't know what kind of sorcery this is but these are literally better than those 6-zillion count Egyptian cotton sheets that cost more than the GDP of a small nation. These are exceptional!! Soft as butter but still feel like they'll last a while and not let you fall out of bed like silk lol.
When you fold them, they snap nicely.
They seem to have a lived in look..like they'll never be utterly wrinkle-free but who cares..they're smooth, soft and supposed to be cooling.
I never thought I'd find anything more comfortable than cotton sheets but these are even better.
The colors are ok. Pretty basic but they are true to life..some others look different online than when you get them..not these colors online are accurate.
This was a great deal and I'd recommend a thousand times over!
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Reviewed in the United States on May 23, 2026