SKU: 73263408370

Pacemaker 3" Exhaust System with 1 7/8" Headers for HSV VY S2 VZ 5.7L V8 2003–2006 - PP5363-63

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Description

Pacemaker 3" Exhaust System with 1 7/8" Headers for HSV VY S2 VZ 5.7L V8 2003–2006 - PP5363-63Pacemaker 3" Performance Exhaust System with 1 7 8" Tuned Headers & Rear Pipe Only for HSV VY Series 2 & VZ (5. 7L V8) PP5363 63 Unlock massive horsepower gains and unleash an ultra aggressive muscle roar from your 5. 7L LS1 engine with the Pacemaker Sport Systems complete exhaust solution. Specifically engineered for the HSV VY Series 2 and VZ Sedan platforms, this high flow setup is configured with a high volume "Rear Pipe Only" exit plan instead of

Pacemaker 3" Performance Exhaust System with 1 7/8" Tuned Headers & Rear Pipe Only for HSV VY Series 2 & VZ (5.7L V8) - PP5363-63

Unlock massive horsepower gains and unleash an ultra-aggressive muscle roar from your 5.7L LS1 engine with the Pacemaker Sport Systems complete exhaust solution. Specifically engineered for the HSV VY Series 2 and VZ Sedan platforms, this high-flow setup is configured with a high-volume "Rear Pipe Only" exit plan instead of a standard rear muffler assembly. Featuring large-diameter 1 7/8" primary tuned headers paired with a massive 3" mandrel-bent layout, it delivers maximum exhaust gas velocity while providing an unrestricted bark. It is the ultimate match for cammed, modified, or high-scavenging 5.7L builds that demand peak top-end performance and a standout racetrack sound. 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 absolute peak in flow efficiency, heavy-duty scavenging, and raw acoustic output for the high-performance HSV platform.

  • Complete Headers Setup: Total kit featuring 1 7/8" 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.
  • 1 7/8" Tuned Headers: Upgraded large-tube design 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 3" (76mm) pipe structure ensures a smooth, constant internal diameter to prevent flow restriction.
  • Hanger Integration: Designed as a direct bolt-on layout utilizing the vehicle's factory mounting points.
Product Specifications for PP5363-63
Brand Pacemaker Sport Systems Part # / SKU PP5363-63
Product Type Headers & Full Exhaust System Primary Header Size 1 7/8" (47.6mm) Tuned Primaries
Material 409 Grade Stainless Steel Piping Size 3" (76mm) System
Engine Compatibility 5.7L LS1 V8 System Exit Configuration Rear Pipe Only (No Rear Muffler)

Important Fitment Notes:

  • Specifically engineered to fit HSV 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 3" 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 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
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.

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Shipping Notes
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Exchange/Return Notes
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SKU: 73263408370

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4.6 ★★★★★
Based on 14 reviews
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Verified Purchase
Vonda Kioultzopoulos
Bozeman, US
★★★★★ 3
Effective but may be uncomfortable
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I have eczema on my feet and use a prescription cream that I leave on overnight. I often have a problem sleeping in socks but the silicone feels cool on my feet. The only drawback I have is the opening of the socks feel very tight around my ankles making them uncomfortable on me. I wish the opening was a bit more flexible.
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Reviewed in the United States on September 20, 2025
T
Verified Purchase
Tessy
Fort Morgan, US
★★★★★ 1
Burned my already sensitive feet, too big
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
Feels icky, and the heat gets trapped and literally felt like my feet were being burned by these. The bottoms of these feel prickly and they are way too big. You have to sit still and cannot walk in them.
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Reviewed in the United States on April 22, 2026
M
Verified Purchase
Ms. Mac
New York, US
★★★★★ 5
Just as good as paraffin wax
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I might prefer these socks over paraffin wax. They are comfy and very moisturizing. I use these socks once a week to keep the heels and soles of my feet moisturized between pedicures. I rinse with warm, soapy water then hang to dry. They are hard to walk in, but there's a saying printed in the socks that's says something to the effect of "take a break, stay off your feet" lol I love that as a reminder to put my feet up and relax
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Reviewed in the United States on April 9, 2026
S
Verified Purchase
SKI
West Palm Beach, US
★★★★★ 5
Love these!
Color: Pink & Beige, Size: Small(fits up to size 7)
Love these! As I write this review, I’m sitting in my recliner with these on. I have had other silicone socks in the past and would like to share a few of the things that I have learned. These fit great! The others were 2-3 sizes too big because you could not order a size. I wear a size 7 women’s shoe. I got the smaller size. I walked around my apartment in my old ones and they got kinda yucky. Now, I sit in my recliner, put them on and chill for a few hours. I now take them off and put in a ziplock bag so they stay nice and clean (no cat hair!). I use them once a week usually on Saturday or Sunday as I’m a working girl. Also, I use Auqaphor before I put them on and put cotton socks on after I’m finished. Your feet will be SO soft. This is not a one and done…I do this every week especially during sandal season! I know this was lengthy and I hope you got some tips.
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Reviewed in the United States on April 25, 2026
K
Verified Purchase
Kelsey
Draper, US
★★★★★ 5
The dogs like it very much, it produces a lot of noise.
Size: Large, Size: Large
I’m rating this based on my dogs’ response to this toy – they absolutely love it, and it has seen more use without damage than any of their regular throwing toys. At the same time, unless you enjoy, REALLY ENJOY the sound of crunching water bottles, you may not like having this ball in the house. Pros: The rubber outer shell of the ball is durable, and can survive both chewing and pulling forces (as a note, my dogs do not concentrate on chewing - they use it more for play games). It’s big enough for my dogs to play tug of war with it, hooking their teeth in the mesh, and they since it bounces around if they drop or kick it, it makes the game more interesting than rope. They did crush the interior plastic, but they don't really seem to care. It’s much more engaging than a normal ball, and can be modified to hold treats, sticks, rope elements and other external bits, which my shepherd mix loves; he gets bored easily and frequently, and this can actually entertain him. Cons: This toy is loud, and produces repetitive crunching sounds. It is apparently really engaging to chew, and my dogs will produce the horrid plastic crackling up to half an hour at a time. If you let your dogs in and out, it would make a fine outdoor toy, but since I have a dog door, it migrates around to pretty much wherever the dogs are. I kind of hate it, but will probably buy another if they break this one since they enjoy it so much.
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Reviewed in the United States on October 17, 2016

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