SKU: 41204033674

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)

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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
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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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SKU: 41204033674

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4.2 ★★★★★
Based on 29 reviews
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M
Verified Purchase
Melissa F
Draper, US
★★★★★ 5
LOVE this tough toy! My teething puppy is still enjoying it!
Color: Hedgehog
LOVE the hedgehog! Very tough! My dachshund has not been able to chew off any of the 'nubs', and does she try! lol The only thing is, the first thing she did was chew off the nose, but I discarded it and watched her closely to make sure she didn't chew off any more, and no, its still being chewed on. Wish I could find more toys like this one!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
D
Verified Purchase
dawn
Fort Morgan, US
★★★★★ 3
still searching for a truly indestructible dog chew toy
Color: Hedgehog
My smallish dog (15 lb Boston terrier) got this chewed up within a half an hour. I didn't notice right away that he was also eating the parts he chewed off. Didn't last a day. Otherwise, quick shipping for a cute toy.
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Reviewed in the United States on June 12, 2026
M
Verified Purchase
Mena
Boise, US
★★★★★ 5
Good size for my pug!
Color: Dentachew 3 Pk
I love how it’s a good size for my pug it is easy for her to play around with. I had stuffed animals for her to play around with but it looked so silly to watch her play with something that is 10 times as big as her 😂. I had to buy her these toys and she seemed so happy when she first got them. It was so funny and interesting that she had to chew all three toys and decide which one she liked. At first she decided to play with the rope toy and she liked the rope toy, then she got curious with the rubber toys. She has decided that the rubber toys are her favorite and I’ve tried to engage with playing with her with the rope toy. She gets more interactive with the rubber toys! She also looked so relieved while chewing them so that’s a plus!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
L
Verified Purchase
Lindap
Carnegie, US
★★★★★ 4
Good for Teething puppies
Color: Teething Stick
After getting my fingers chewed and bitten by my new foster - 8 week old Yorkie , I was desperate to find good teething toys. Fortunately this one arrived quickly. Turned out to be very good for teething puppies! Charlie loves this cooling stick. Once it’s frozen, the cold really seems to soothe his sore gums. The icy part doesn’t stay frozen for long, but it works so well that I bought a second one to keep ready in the freezer while he’s working on the first. Even after it warmed up, he still enjoyed chewing on the soft stuffed part and the tentacles. The product card says not to use it as a chew toy, so supervision is a must, but it held up just fine so far. Overall, this has been a big help during the teething phase — short-lived when frozen, but very effective while it lasts! And worth every penny to save my fingers from being a chew toy.
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Reviewed in the United States on October 7, 2025
A
Verified Purchase
Amanda Rogers
West Palm Beach, US
★★★★★ 5
From Puppy Teething to Adult Favorite – 7 Years Later
Color: Teething Stick, Color: Teething Stick
This has been one of the best toys I’ve ever bought! My dog has loved the Pupstages Cool Teething Stick since she was a tiny puppy, and now at 7 years old, it’s still one of her absolute favorites. It’s been amazing for soothing teething when she was little, and now she still enjoys chewing on it and carrying it around. It’s held up surprisingly well over the years, especially considering how much use it’s gotten. I also love that you can cool it for extra relief—it really helped during those puppy stages. If you’re looking for a toy that lasts and actually becomes a long-term favorite, this is definitely it. Highly recommend for both puppies and even older dogs who still love a good chew! 🐶
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Reviewed in the United States on May 1, 2026

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