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Description
Pacemaker 2.5" Performance Exhaust System with Tri-Y Headers for HSV VU VY Series 1 5.7L V8 Ute - PP5367-25Pacemaker Full 2. 5" Performance Exhaust System with Tri Y Headers & Hi Flow Cats for HSV VU & VY Series 1 Utility (5. 7L Gen III V8) PP5367 25 Unleash devastating low to mid range torque, optimize scavenging velocity tracking, and extract a rich, deep Australian muscle car roar from your high performance engine block with the Pacemaker Sport Systems full 2. 5 inch performance exhaust solution featuring high efficiency Tri Y tuned extractors.
Pacemaker Full 2.5" Performance Exhaust System with Tri-Y Headers & Hi-Flow Cats for HSV VU & VY Series 1 Utility (5.7L Gen III V8) - PP5367-25
Unleash devastating low-to-mid range torque, optimize scavenging velocity tracking, and extract a rich, deep Australian muscle car roar from your high-performance engine block with the Pacemaker Sport Systems full 2.5-inch performance exhaust solution featuring high-efficiency Tri-Y tuned extractors. Specifically configured to maximize power curves on elite HSV Gen III 5.7L V8 commercial performance architectures (LS1 powerplants), this premium package pairs race-bred performance hardware with a fully muffled intermediate and rear system. Custom-molded specifically to match the utility floor pan lines, clear flat cargo load beds, and map perfectly around vehicle-specific rear suspension layouts, it completely eliminates power-robbing backpressure under wide-open throttle transitions. As Australia’s premium exhaust innovator, Pacemaker integrates elite structural engineering with 3" metallic high-flow catalytic converters, patented V-Tex technology, and signature double-skinned mufflers, producing an authoritative performance roar on throttle while actively engineering out harsh interior cabin boom or tray resonance to preserve a completely clean, drone-free cruising experience.
Note: Fits HSV VU and VY Series 1 Utility (Ute) variants built from 2000 to 2003 equipped with the 5.7L Gen III V8 engine layout; does not fit Sedan, Station Wagon, One Tonner, or later VE/VF generation platforms due to significant chassis length, structural floor contour, and hanger position variations.
Features:
Precision-manufactured in Australia to deliver a heavy-duty high-flow upgrade, exceptional structural longevity under intense heat, and a refined performance acoustic profile for the elite performance utility platform.
- Complete Performance Kit: Comprehensive track-and-street performance upgrade incorporating premium tuned Tri-Y headers, 3" high-flow metallic catalytic converters, and a matching full 2.5-inch intermediate piping route with high-efficiency mufflers.
- Tuned Tri-Y Design Architecture: Secondary-paired pipe layout engineered specifically to build exceptional low-to-mid range torque response, making it the perfect upgrade for heavy utility chassis acceleration tracking.
- Utility Specific Clearance: Custom-tailored plumbing path configured to route cleanly beneath flat cargo bed structures, drop-sides, and vehicle-specific commercial chassis lines.
- Premium Materials: Constructed completely from durable, heavy-gauge Exhaust Grade 409 Stainless Steel to ensure superior structural longevity and resistance to thermal fatigue.
- High-Flow Mandrel Bent Tubing: Rigid full 2.5" (63.5mm) pipe structure guarantees a smooth, uniform internal diameter through all bends to eliminate gas turbulence and prevent flow restriction.
- V-Tex Technology: Advanced internal patented anti-drone configuration filters out harsh, low-frequency cabin resonance typical of open layouts without restricting gas velocity footprints.
- Signature Mufflers: Heavy-duty double-skinned 409 Stainless Steel mufflers offer premium outer case reinforcement, preventing case distortion and internal packing blowout under heavy thermal load constraints.
- Direct Bolt-On Layout: Engineered as a comprehensive, vehicle-specific full bolt-up kit that mounts directly onto existing factory rubber hanger positions—no custom fabrication required.
| Product Specifications for PP5367-25 | |||
|---|---|---|---|
| Brand | Pacemaker Sport Systems | Part # / SKU | PP5367-25 |
| Product Type | Full Performance Header & Exhaust Kit | Header Configuration | Tuned Tri-Y Primary Run Architecture |
| System Piping Size | High-Flow 2.5" (63.5mm) Mandrel Tubing | Material | 409 Grade Stainless Steel |
| Engine Compatibility | 5.7L Gen III LS1 V8 | Catalytic Converter | 3" Premium High-Flow Metallic Converters |
Vehicle Applications:
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| HSV (HOLDEN SPECIAL VEHICLES) UTILITY | ||||||||
| HSV | Maloo / Utility | 2000 | 2002 | Utility (Ute) Only | VU Series (VU & VU II) | 5.7L Gen III LS1 V8 | Maloo / Maloo R8 layouts | RWD |
| HSV | Maloo / Utility | 2002 | 2003 | Utility (Ute) Only | VY Series 1 (S1 Only) | 5.7L Gen III LS1 V8 | Maloo / Maloo R8 configurations | RWD |
Important Fitment Notes:
- Specifically engineered to fit HSV VU and VY Series 1 Utility (Ute) configurations powered by the 5.7L Gen III V8 engine layout.
- Utility Specific Geometry: Designed strictly to conform around traditional VU/VY commercial floor pan paths, under-tray structural clearances, and specific rear subframe hanger anchors. It will not adapt to Sedan, Station Wagon, One Tonner, or later generation VE/VF utility platforms due to major structural blueprint layout and spacing variations.
- Full kit scope: Comprehensive high-efficiency performance solution from engine block to rear exit, including tuned Tri-Y headers, premium 3" high-flow metallic catalytic converters, 2.5" intermediate plumbing paths, and a signature double-skinned rear muffler assembly.
- Direct full bolt-up architecture interfaces seamlessly with original vehicle-specific rubber hanger brackets. No custom modification or cutting layout mapping is required.
- Professional automotive performance technician installation is highly recommended to guarantee ideal ground clearance, check steering column tolerances, verify proper pipe routing, and ensure completely gas-tight structural seals under the floor pan.
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]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Well-packaged, quality materials, easy to assemble, very comfortable, great customer service
Color: Black Full Mesh, Style: Executive
When I received this package, I was surprised at how small/compact it was--hard to believe a high-back office chair could fit in that box! As I unpacked it, I was impressed by two things: first, how incredibly well it was packaged with an obvious intent to protect the components; second, how solid, heavy-duty, and high-quality those components were.
I got the box unpacked and read the instructions. They were simple and easy to understand, and included so many "here's a good tip" notes that it was obvious that a lot of thought and experience had gone into writing them. I found the chair simple to assemble and had it done in less than 15 minutes.
The chair was very adjustable. I was able to get the height to exactly what I wanted with no trouble at all. I was also able to adjust the height of the lumbar support, and to adjust how far it extended. There are a lot of adjustments you can make, the instructions lay that out quite thoroughly, too. As a result, the chair was very comfortable and helped me sit with a healthy posture.
I bought this chair because I had begun having an ache in my lower back, which I suspected was due to a chair I had been using for over 5 years. Within 3 days, the back pain was gone.
I was also very impressed with the customer service. Their manual mentions in multiple places things you can try if you have any issues, and always ends with "call us". Their team reached out to me after a few days to make sure I got the chair assembled with no issues and that it was comfortable. This was all part of the all-around quality of this purchase.
I'm very happy with this chair!
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Comparable to Higher-End Chairs, Solid Build and Support Without the Premium Price
Color: Black Full Mesh, Style: Executive, Color: Black Full Mesh, Style: Executive
I’ve been using this chair for a bit now and it’s been a genuinely upgrade. The build quality stands out right away, it has real heft and doesn’t feel cheap or hollow. Everything fits together cleanly and once assembled it feels stable and planted. I’m over 6 ft and 200+ lbs and it handles that without any issue, no creaking or sense that it’s being pushed to its limits.
There’s enough space in the seat and back that you don’t feel boxed in. I added an extra ergonomic cushion and it still feels roomy, which isn’t always the case with chairs in this category. The adjustability helps a lot here, especially the lumbar support. Being able to move it up and down and also forward and back makes it easy to actually get it where you need it, instead of just accepting a fixed position. The armrests are also easy to dial in, especially if you’re switching between typing, reading, or leaning back a bit. The tilt range is useful, and the tilt tension is stronger than I expected. Even at my size it takes a bit of effort to lean back, which I see as a positive since it feels controlled and supportive rather than loose or overly easy to recline. The mesh is another strong point. It came in perfect condition, no snags, no loose threads, no rough edges anywhere. There weren’t any bits of untrimmed plastic on the frame either, which says a lot about the quality control. The mesh itself is taut with a bit of bounce, so it doesn’t sag but still has some give, which makes long sitting sessions more comfortable.
Assembly was straightforward and clearly thought through. The instructions are easy to follow, but what stood out were the built in redundancies that keep you from second guessing anything. There are multiple left and right indicators when installing the arms, a clear front facing marker for the gas lift, and the screws are labeled in the packaging so you’re not guessing which goes where. It’s one of the smoother assembly experiences I’ve had.
I also reached out to activate my warranty and had a very positive experience. I spoke with Alice who was very knowledgeable, quick, warm, and they went out of their way to help me with whatever I needed. When I inquired about the extra screw holes under the chair, she let me know that this was for a foot rest which was still in the production phase and unprompted offered to have one shipped to me when they were ready! There is an excellent team behind the product.
Overall: well built chair with good materials, thoughtful design choices, and good adjustability to make it work for different setups. It feels durable, comfortable over longer periods, and especially well suited if you need something that can handle a larger frame without sacrificing support.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Great product AND customer service!
Color: Black Full Mesh, Style: Executive
I'm having a hard time writing this review because I can't tell which one I like better: the product or the customer service!
I work on a computer all day, so a comfortable office chair is critical for me. This chair is great - it's adjustable in every way I need it to be, especially the armrests. The breathable mesh is both durable and supportive, and is more comfortable to sit in than the "overstuffed" chair it replaced.
Let me just say: no company provides better customer service than MOLENTS. Right after assembling my chair (which was very easy, btw), I registered for the 2 year warranty they offer. The NEXT DAY I received an email from Alice in their customer service department 1) to confirm my warranty, 2) to tell me about the free foam seat cover they were sending me, and 3) to make sure the chair was comfortable and easy to assemble. Very few companies take the effort to follow up with customers right after making a purchase like that.
I'm extremely happy with this purchase. This chair is worth MORE than it's weight in gold, and I strongly recommend to anyone thinking about buying an office chair to buy it from MOLENTS - you won't regret it.
Oh, and if Alice's supervisors are reading this: she absolutely deserves a promotion!
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Reviewed in the United States on March 13, 2026
★★★★★ 4
good chair for price
Color: Black Full Mesh, Style: Executive
I have had for about 2 months and seems to be holding up well, so far, and is comfortable for most part. Only complaint is the arms do not lower a lot, so cannot go under the desk.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
High quality and incredible customer service
Color: Black Full Mesh, Style: Executive
This is an extremely well made chair at a very competitive price. The packaging, assembly instructions, as well as the way the hardware was packaged and labeled is probably the best I've seen. I'm particular about tools, and the included allen wrench was better than the normal "included tools" so much so that i actually used it rather than one of my own. The assembly was easy, and the chair itself looks and feels very high quality, and is very comfortable. Perhaps best of all was the level of customer service. I emailed on a weekend to activate the warranty and request the free cushion they offer. I got a personal response in less than a day and they offered upgraded wheels for free as well. This is a company worth doing business with.
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Reviewed in the United States on April 5, 2026