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Description
Pacemaker 2.5" Exhaust System with 1 7/8" Headers for Holden VY S2 VZ 5.7L V8 Sedan 2003–2006 - PP5363-05 (Rear Pipe Only Variant)Pacemaker 2. 5" Performance Exhaust System with 1 7 8" Tuned Headers & Rear Pipe Only for Holden VY Series 2 & VZ Sedan (5. 7L V8) Unlock major horsepower gains and unleash an ultra aggressive muscle roar from your 5. 7L LS1 engine with the Pacemaker Sport Systems complete performance exhaust solution. Specifically engineered for the Holden VY Series 2 and VZ Sedan platforms, this heavy breathing configuration replaces the standard rear tail muffler
Pacemaker 2.5" Performance Exhaust System with 1 7/8" Tuned Headers & Rear Pipe Only for Holden VY Series 2 & VZ Sedan (5.7L V8)
Unlock major horsepower gains and unleash an ultra-aggressive muscle roar from your 5.7L LS1 engine with the Pacemaker Sport Systems complete performance exhaust solution. Specifically engineered for the Holden VY Series 2 and VZ Sedan platforms, this heavy-breathing configuration replaces the standard rear tail muffler assembly with a high-volume "Rear Pipe Only" section. Featuring large-diameter 1 7/8" primary tuned headers paired with a smooth 2.5" mandrel-bent line, it delivers maximum exhaust gas velocity while providing an unrestricted racetrack bark. It is the ultimate match for cammed, modified, or high-scavenging 5.7L builds that demand peak performance and an intense sound profile. Note: Fits Holden VY Series 2 and VZ Sedan models (2003–2006) equipped with the 5.7L LS1 V8 engine.
Features:
Precision-manufactured in Australia to deliver the absolute peak in flow efficiency, heavy-duty scavenging, and raw acoustic output for the high-performance Commodore sedan platform.
- Complete Headers Setup: Total kit featuring large primary tuned headers, 3" hi-flow cats, and active piping sections.
- Rear Pipe Configuration: Built with a straight-through rear pipe replacing the standard tail muffler for maximum exhaust bark and unrestricted flow potential.
- 1 7/8" Tuned Headers: Upgraded large-tube extractor layout engineered to optimize top-end power potential and high-RPM volumetric efficiency.
- Premium Materials: Constructed completely from durable Exhaust Grade 409 Stainless Steel for superior longevity under high thermal stress.
- Mandrel Bent Tubing: Heavy-duty 2.5" (63.5mm) pipe structure ensures a smooth, constant internal diameter to prevent backpressure.
- Hi-Flow Cats: Supplied with 3" premium high-flow metallic catalytic converters transitioning cleanly to a high-velocity 2.5" path.
| Product Specifications | |||
|---|---|---|---|
| Brand | Pacemaker Sport Systems | Product Type | Headers & Performance Exhaust |
| Primary Header Size | 1 7/8" (47.6mm) Tuned Primaries | Piping Size | 2.5" (63.5mm) System |
| Material | 409 Grade Stainless Steel | System Exit Configuration | Rear Pipe Only (No Rear Muffler) |
| Engine Compatibility | 5.7L LS1 V8 | Body Configuration | Sedan Only |
Important Fitment Notes:
- Specifically engineered to fit Holden VY Series 2 and VZ Sedan models powered by the 5.7L LS1 engine (2003–2006).
- Full kit scope: Includes 1 7/8" Tuned Performance Extractors, 3" High-Flow Metallic Catalytic Converters, and a complete 2.5" exhaust system featuring a straight-through rear section with a rear pipe only.
- The "Rear Pipe Only" deletion of the rear resonator creates a significantly louder, unfiltered acoustic profile compared to traditional full-muffler configurations.
- Direct bolt-on design reuses vehicle-specific factory hanger positions.
- Professional automotive performance technician installation is highly recommended to guarantee ideal ground clearance and tight seals.
Vehicle Applications:
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| HOLDEN | ||||||||
| Holden | Commodore / Calais | 2003 | 2006 | Sedan Only | VY S2 / VZ | 5.7L LS1 V8 | SS / Executive / V8 Models | RWD |
Warranty Information
| Product | Warranty Period |
|---|---|
| Pacemaker Sports Exhaust Systems | Five (5) years. |
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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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]
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4.7 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
URGENT!!!! REALLY WORKS!!!! Fact ✔️
Size: Pack of 3, 4 Ounce, Set name: B. Whitening
I was immediately convinced this would work due to its ingredients, I had a previous filling fallout. So I immediately requested he apply another filling while I was getting some other dental work done, and the dentist said there was no rush to install, A new filling, showed me a picture. It looked great still white no cavities. In the high definition, microscope photo he showed me,It almost look like the inside of a white Jacuzzi tub with molded seat, I had the rest of the work done and didn’t get to go back soon enough, and the tooth started to bother me when something sweet would hit that spot and I looked in the mirror and it was starting to turn a light brownish color, I had just heard about HA toothpaste, I did some research and this is what I found
Hydroxyapatite = the SAME mineral your teeth are made of
• Your enamel is mostly this material (like 70–97% of tooth structure) 
• So instead of adding a chemical… it’s literally rebuilding with the original material
When you brush with nano-hydroxyapatite:
• Tiny particles fill in microscopic cracks in enamel
• Helps reduce sensitivity
• Can make teeth look whiter naturally (smoother surface reflects light better)
• Strengthens teeth against future damage
so I ordered 3 pack Boka HA and on everything I love in three days of brushing for 2 minutes twice a day morning at night, do not brush your teeth with tapwater ever!!! It has more chlorine than a swimming pool, calcium lead, and other harsh chemicals that will take away the layer it’s going to build always use bottled water and do not rinse this toothpaste out of your mouth. Let it settle in and pack it into your molars and in between your teeth,it was completely healed and no sensitivity to sugar, hot or cold, it tastes great, and the fluoride free is the only way to go fluoride will destroy your tooth enamel, I gave the other two tubes to my kids and they love it, I am looking forward to less dental appointments for sure!!!!!
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Reviewed in the United States on March 21, 2026
★★★★★ 5
Five stars for BOKA without hesitation.
Size: Pack of 1, 4 Ounce, Set name: A. Ela Mint
I have tried a lot of natural toothpastes over the years and I can honestly say that Boka completely surprised me in the best possible way. From the very first use it felt like I had finally found a toothpaste that balances modern science with a clean ingredient philosophy. You will not be disappointed.
The standout ingredient here is nano hydroxyapatite, which is the same mineral that naturally makes up tooth enamel. That immediately caught my attention because instead of simply masking dental issues it actually supports remineralization. After learning more about nano hydroxyapatite and how it interacts with enamel I felt confident giving this toothpaste a real trial. The texture is smooth and creamy and it spreads easily across the teeth. Some fluoride free toothpastes can feel chalky or thin but this one feels refined and well formulated. It produces a gentle foam that feels pleasant while brushing but never overwhelming.
The flavor is another area where this toothpaste shines. It is refreshing without being harsh or overly minty. My mouth feels clean and balanced after brushing rather than blasted with artificial intensity. That subtle freshness actually lasts much longer than I expected.
After about two weeks of consistent use I started noticing that my teeth felt smoother throughout the day. That polished feeling you normally get right after a dental cleaning lasted longer than usual. My teeth also appeared brighter which was a welcome bonus.
Another thing I appreciate is the ingredient transparency. There are no questionable additives and it is completely fluoride free which is important for people who prefer alternatives that still support enamel health. Knowing that nano hydroxyapatite is widely used in advanced dental care products in other parts of the world made this even more compelling.
The packaging is clean and modern and the tube dispenses easily without making a mess on the cap. It feels like a premium product from start to finish. What really impressed me is how well this toothpaste balances effectiveness, comfort, and thoughtful formulation. It manages to feel gentle while still leaving my teeth incredibly clean and refreshed. If you are looking for a high quality fluoride free toothpaste that focuses on enamel support and a healthier approach to oral care then I highly recommend giving this one a try. It has absolutely earned a permanent place in my daily routine and it is one of the few natural toothpastes I genuinely look forward to using every day.
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Reviewed in the United States on March 12, 2026
★★★★★ 5
Great toothpaste.
Size: Pack of 1, 4 Ounce, Set name: B. Whitening
This is by far really great toothpaste. I can tell the difference in the color of my teeth. And sometimes my teeth are kinda sensitive to harsh toothpaste. But this is good for sensitive teeth. And minty flavor is not to strong either. Try it. I hope it works for you as well as It does for me. 🤗
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Reviewed in the United States on May 13, 2026
★★★★★ 4
Gentle and Pleasant to Use
Size: Pack of 2, 1.3 Ounce, Set name: A. Ela Mint
This toothpaste feels gentle on sensitive teeth and has a clean, refreshing taste without being too strong. The texture is smooth, and it leaves my mouth feeling fresh after brushing.
I also like that it uses nano hydroxyapatite instead of fluoride, which makes it an interesting alternative to traditional toothpaste.
Overall, a good toothpaste for sensitive teeth and daily use.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Good product
I got these are way nicer then they look on here. So far they are holding up well. I keep my soap in it, it is not too hard but not too soft. I feel clean after I used it. Unfortunately, it comes wrapped in plastic, not individually but in just one plastic case. Trying to stay away from plastic but other than that works fine
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Reviewed in the United States on April 11, 2019