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Description
Pacemaker | Tri-Y Design Exhaust Headers | Holden Adventra & Cross 8 5.7L Gen III V8 | PH 5366 L/RPacemaker Tri Y Design Exhaust Headers Holden Adventra & Cross 8 PH 5366 L R Boost the performance of your LS powered AWD Holden with these premium Pacemaker Tri Y design exhaust headers. Specifically engineered for the Holden Adventra Wagon and Cross 8 Ute (VY VZ), these headers are designed to optimize exhaust scavenging, resulting in increased power and substantial mid range torque. Note: Designed specifically for Automatic AWD models. Features:
Pacemaker Tri-Y Design Exhaust Headers - Holden Adventra & Cross 8 - PH 5366 L/R
Boost the performance of your LS-powered AWD Holden with these premium Pacemaker Tri-Y design exhaust headers. Specifically engineered for the Holden Adventra Wagon and Cross 8 Ute (VY-VZ), these headers are designed to optimize exhaust scavenging, resulting in increased power and substantial mid-range torque. Note: Designed specifically for Automatic AWD models.
Features:
This product offers the following high-performance features:
- Tri-Y Header Design: Precision pipe routing maximizes torque and engine efficiency, perfect for heavy-duty AWD applications and towing.
- AWD Optimized: Custom-tailored to clear the unique drivetrain and chassis components of the Adventra and Cross 8 platforms.
- Oxygen Sensor Ready: Includes built-in provisions for Oxy Sensors to ensure accurate engine management and performance.
Product Specifications for PH 5366 L/R
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 5366 | Gasket | DSF 138 |
| P/Steering | Yes | Primary Pipe | 1⅝" (41mm) |
| Air Con | Yes | Secondary Pipe | 1⅞" (48mm) |
| Oxy Sen | Yes | Outlet | 2½" (63mm) |
| E.G.R | N/A | Y Branch | N/A |
| Fitting Time | 3 Hrs | Design | Tri-Y Design |
Important Notes:
- Sensor Extensions: VY Series II models require 1x PEX5367Y loom extension. VZ 5.7L models require 1x PEX5367Z loom extension.
- Fitment Warning: This part will NOT fit Crewman models.
- Designed for All-Wheel Drive (AWD) variants only.
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 PH 5366
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| HOLDEN | ||||||||
| Holden | Adventra | 2003 | 2006 | Wagon | VY - VZ | 5.7L Gen III LS1 V8 | Automatic | AWD |
| Holden | Cross 8 | 2003 | 2006 | Crew Cab Ute | VY - VZ | 5.7L Gen III LS1 V8 | Automatic | AWD |
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
4.4 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
2 months supply, tasty berry bubblegum flavor, no morning cramps.
I've been taking Magnesium supplements for a long time, usually in capsule form. Starting from about age 45 I kept getting these awful morning calf cramps. Especially stretching, or on cold morning. The sudden agony was unexpected and concerning. Magnesium is the answer and this water-soluble magnesium from Thorne is no exception.
For this particular problem, calf cramps. The results are noticable within a couple of days. If I stop taking magnesium for 3-5 days the cramps come back.
Thorne powder has a berry flavor that is very similar to bubble gum. It dissolves easily without leaving any lumps. Is great to help you take your other supplements. I've been taking this for about 3 weeks with no cramps. Price is a little higher than capsules typically are. This works for me and the tub should last two-months if you follow the directions.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Easy Way to Add Magnesium Support
Magnesium is one of those supplements many people find helpful as part of their wellness routine. The powder format makes it easy to adjust serving sizes and mix into drinks.
One thing I liked was the citrus berry flavor, which made it more pleasant than many unflavored supplements. Overall, a convenient magnesium option from a well-known brand
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Reviewed in the United States on June 3, 2026
★★★★★ 5
Great Taste and Mixes in Water Well
I’ve been using this magnesium citrate powder for a little while now, and overall it’s been a positive experience. One of the standout aspects is how well it mixes. It dissolves easily in water with minimal residue, which makes it much more convenient compared to some other powdered supplements I’ve tried. The citrus berry flavor is also quite good: light, slightly sweet, and easy to drink without being overpowering. The powder format makes it simple to adjust how you take it (more or less water, etc.), and I didn’t notice any strong aftertaste. From a general usability standpoint, this checks the boxes I look for in a supplement: good taste, easy mixing, and consistent quality. Thorne also has a strong reputation, and this product feels in line with that in terms of formulation and overall experience. As with any supplement, individual experiences can vary, but from a taste, mixability, and convenience perspective, this has worked well for me. Overall, this is a solid option if you’re looking for a magnesium citrate powder that’s easy to take on a regular basis.
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Great Magnesium Blend That Actually Works
Size: 100 Count (Pack of 1), Size: 100 Count (Pack of 1)
I’ve been taking Life Extension Magnesium Caps (500 mg) for a few weeks now, and I can really feel the difference. It’s a blend of magnesium oxide, citrate, and succinate, and I’ve noticed improved sleep quality and fewer muscle cramps at night. The capsules are easy to swallow and don’t upset my stomach, which has been an issue with other magnesium supplements I’ve tried. Plus, I like that they’re vegetarian-friendly and come in a 100-count bottle, which lasts a good while.
What I appreciate most is how balanced this formula feels. I take it mainly for sleep, muscle support, and overall well-being, and I genuinely notice I feel more relaxed, especially in the evenings. For the price and quality, it’s a great value. I’ll definitely keep this one in my daily routine.
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Reviewed in the United States on June 18, 2025
★★★★★ 5
This Magnesium Is Worth It!
Size: 100 Count (Pack of 1)
Life Extension is a quality company, and this Magnesium is very good.
I have been taking it for maybe a year, and it helps me steer clear of debilitating nightly leg cramps, and also helps my digestion from getting sluggish.
I don't really see any reason to change brands, because I trust Life Extension to deliver a high-quality product, so I'm just gonna stick with it. Recommended!
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Reviewed in the United States on December 3, 2025