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Description
Pacemaker 2.5" Exhaust System with Tri-Y Headers for HSV VY S2 VZ 5.7L V8 2003–2006 - PP5367-15Pacemaker 2. 5" Full Performance Exhaust System with Tri Y Headers for HSV VY Series 2 & VZ (5. 7L V8) PP5367 15 Unlock the torque and iconic deep rumble of your 5. 7L LS1 engine with the Pacemaker Sport Systems complete 2. 5" exhaust solution. Specifically engineered for the HSV VY Series 2 and VZ Sedan platforms, this high flow system provides a total performance upgrade from the cylinder heads to the tailpipes. Featuring precision tuned Tri Y
Pacemaker 2.5" Full Performance Exhaust System with Tri-Y Headers for HSV VY Series 2 & VZ (5.7L V8) - PP5367-15
Unlock the torque and iconic deep rumble of your 5.7L LS1 engine with the Pacemaker Sport Systems complete 2.5" exhaust solution. Specifically engineered for the HSV VY Series 2 and VZ Sedan platforms, this high-flow system provides a total performance upgrade from the cylinder heads to the tailpipes. Featuring precision-tuned Tri-Y headers designed for maximum low-to-mid range scavenging paired with a 2.5" mandrel-bent exhaust layout, it is the ideal choice for street performance and clean daily drivability. As Australia’s leading manufacturer, Pacemaker utilizes signature V-Tex technology to deliver a powerful performance note while completely eliminating intrusive cabin drone. Note: Fits HSV 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 ultimate balance of flow efficiency, durability, and high-performance sound for the V8 HSV platform.
- Complete System: Includes high-performance Tri-Y headers, 3" hi-flow cats, and a full 2.5" performance exhaust system.
- Tri-Y Design: Specifically optimized to maximize mid-range torque delivery and sharpen throttle response on LS1 platforms.
- Premium Materials: Constructed completely from Exhaust Grade 409 Stainless Steel for superior service life.
- V-Tex Technology: Incorporates Pacemaker's patented technology to filter out resonance and cabin drone.
- Signature Mufflers: Double-skinned 409 Stainless Steel mufflers for increased strength and refined acoustics.
- Hanger Integration: Designed as a direct bolt-on layout utilizing the vehicle's factory mounting points.
| Product Specifications for PP5367-15 | |||
|---|---|---|---|
| Brand | Pacemaker Sport Systems | Part # / SKU | PP5367-15 |
| Product Type | Headers & Full Exhaust System | Header Style | Tri-Y Design |
| Material | 409 Grade Stainless Steel | Pipe Size | 2.5" (63mm) System |
| Engine Compatibility | 5.7L Gen III LS1 V8 | Country of Manufacture | Australia |
Important Notes:
- Specifically engineered for HSV VY Series 2 and VZ Sedan models powered by the 5.7L LS1 engine (2003–2006).
- Full system scope: Includes Performance Tri-Y Headers, 3" High-Flow Catalytic Converters, and a complete 2.5" performance exhaust system.
- Designed as a clean bolt-on configuration via existing factory mounting points and hangers.
- Professional automotive technician installation is highly recommended to ensure correct alignment.
Vehicle Applications:
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| HSV | ||||||||
| HSV | Clubsport / GTS / Senator | 2003 | 2006 | Sedan Only | VY S2 / VZ | 5.7L LS1 V8 | V8 Models | RWD |
Warranty Information
| Product | Warranty Period |
|---|---|
| Pacemaker Sports Exhaust Systems | Five (5) years. |
Payment & Security:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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- Delivery to the USA:
- Standard Shipping : 3-10 business days
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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
4.8 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 4
Beautiful sturdy, cozy chair, BUT…..
Color: White, Color: White
Updated review.
I was so excited to get this chair that I jumped the gun and wrote the review prior to spending more time seated.
I only have one issue, which is the back bottom of the seat cushion. That’s a big deal. It appears so thick, fluffy and inviting, however, when I sat in it for a couple of hours it completely went flat in the back feeling like I was sitting on a board. I’m 5’4” 180 lbs, which means my feet don’t touch the floor so adding a cushion will elevate me a little more. I’m OK with that but it’s going to ruin aesthetic of the chair which is which is not ok. I do love the idea of this chair. It’s design and the color. I wish the seat cushion had a zipper, which would eliminate my issue. I’d say if you’re someone who has to spend a lot of hours in this chair, you probably won’t like it. I do like the reclining back and the foot rest. It is comfortable to lay back but that doesn’t change the issue in the back bottom of the seat cushion.
I absolutely love this chair, I didn’t want to get up. It’s beautiful and cozy. Assembly was easy as I’ve assembled chairs before. I changed the wheels to a double roller blade easy on hard wood floors. I also scotch guarded the entire chair. This chair is sturdy and well made.
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Reviewed in the United States on February 25, 2026
★★★★★ 5
just get it and stop second guessing
Color: White, Color: White
I reallllly love this chair. I almost talked myself out of it because of some of the bad reviews here and there but i’m glad i listened to a majority of the good reviews, because this chair is perfect.
shipping: it was super fast. it came 5 days earlier than expected. I got it on a Monday when it said it’d be here on Friday
packaging: double boxed and bubble wrapped. Didn’t find any dings or scratches on anything. all parts were there including instructions
assembly: my boyfriend put it together in 40 minutes. We didn’t have any issues zipping up the back cover like other reviews said and he said it was easy instructions to follow, and easy to put together.
size and comfort: it’s bigger than the pictures let on! I’m 5’3 135lbs and feel like I’m sitting on a giant cloud. The comfort is 10/10. I just had a chair with basicslly zero butt cushion which i cannot have while working from home 8+ hrs a day in a chair. Comfort was the most important for me and I finally can’t feel the flat seat under me. I can’t express how comfy it is.
Functions: can move the arm rests up and down. adjust the back to tilt all the way back to a sleeping position or fully upright which i didn’t even realize was a function! The only thing with the armrests; if you’re wanting your pet on it (like advertised) when the arm rests is put down there is a big gap that isn’t comfortable for animals (as pictured) so I have to put a blanket or pillow there for my small dog to lay comfortably.
I’m obsessed with the fact I can sit cross legged, normally, laying down, sprawled up, or legs up. I have room to sit however I want, and the foot rests helps a ton with feeling even more comfortable.
Overall, I’d get this chair 10x over. Not only do I work from home and spend hours in a chair, but I spend additional time playing video games so a good quality chair is very important to me. This has began to help fix my posture and back and neck issues.
Get it!!!
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Reviewed in the United States on February 24, 2026
★★★★★ 5
If You Sit Weird Like Me… Just Buy This Chair
Color: Galaxy Black
I work from home and spend a lot of time sitting for hobbies like Legos, PC games, and crafts—so a comfortable chair is a must. I LOVE this chair so far.
I’ve always struggled to get comfortable in traditional office chairs, and the ability to move around is really important to me. With this one, I can easily cross my legs, use the footrest to stretch out with my knees bent, or just sit normally. I’m 5’4”, so my feet don’t quite touch the ground, but that doesn’t bother me since I’m constantly switching positions anyway.
I’ll probably add a small pillow for extra back support and maybe fold a blanket for a bit more seat cushioning. It’s comfortable overall, but after long periods of sitting, you might start to feel it.
The black sparkle version is MUCH cuter in person, and I’m so glad I went with it. A lot of reviews say, “don’t think about it, just get it”—and honestly, they’re right. I debated for a couple weeks before buying, and I have zero regrets.
Assembly was easier than I expected. I tend to get frustrated putting things together, but this was pretty painless. One tip: check inside the cushioned back piece for the extra headrest part—you’ll need it to attach to the hard back before inserting it into the cushion. Once I figured that out, the rest was simple.
The chair is a bit larger than a standard office chair and can feel a little bulky depending on your desk setup, but I actually like the extra space since I move around a lot while sitting.
It feels sturdy and well-made. It’s also slightly warmer than a mesh chair, which I personally love because I’m always cold.
I am just happy to find a chair that feels comfortable like a recliner and movable like an office chair.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Great chair
Color: Pink
I love this chair! I use it for streaming and working on making jewelry! It’s very comfortable and I love that I can sit different ways in it! I can stream longer than I could in other computer chairs I’ve had! I definitely recommend this if you have to sit for a long time but like to sit in different positions! The instructions were a bit confusing but I did figure it out! I have had to spot clean it a few times because of kids and pets but the material has held up! The back is very comfortable and supportive! I like that I can adjust it! Great chair for the price! It’s held up well and I like that you can adjust the back!
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Reviewed in the United States on June 11, 2026
★★★★★ 4
Good office chair for the money
Color: White
It is a good quality chair that is comfortable and aesthetically pleasing.
The arms aren't necessarily big enough to hold our cat - but that's because he's fairly large by cat standards. The arm rests moving is definitely nice and provides lots of opportunities to 'setup the chair' in a way that works best for you.
The instructions were relatively easy to follow (take your time and think it through to make sure you have everything 'aligned right' at first) and the chair is sturdy and holding up well.
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Reviewed in the United States on April 17, 2026