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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  • Except Preorder products are shipped in 48 hours.
  • Delivery 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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SKU: 73263408370

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★★★★★ 4
Well made and perform well, a little constricting
Size: Medium, Color: Black Assortment (6-pairs)
These socks definitely keep most of the moisture away from my feet, even in wet conditions, which is why I bought them. I am diabetic, though, and the recommendation is to wear socks that don't constrict at any point. These have a tight band around the opening that while it is not uncomfortable on, leaves a mark when I take them off. So far it's been ok, but if you have any kind of swelling in your feet or ankles these would probably not be the best. My foot measures size 8 and I wear size 9 Brooks running shoes. The socks fit me just right but based on the size of the opening and the overall length, I wouldn't think they would fit anyone more than a size larger. Overall well made and perform well as you would expect from this brand.
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Reviewed in the United States on July 20, 2018
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Halle
Lowell, US
★★★★★ 5
long lasting!
Size: Medium, Color: Black/Assorted
literally my favorite sock i will buy forever. they just started busting through after 6 years and i wear them a lot
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Reviewed in the United States on November 13, 2025
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David
Lexington, US
★★★★★ 5
Good quality
Size: Medium, Color: Black/Assorted
Comfy and sturdy
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Reviewed in the United States on January 27, 2025
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Brooke
Chelsea, US
★★★★★ 5
Favorite socks
Size: Medium, Color: Black/Assorted
These are my go to socks! Love these. Great towards sweat and different weather temperatures. Mostly use for working out and love them. Will be getting more!
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Reviewed in the United States on April 9, 2024
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Maranda
Louisville, US
★★★★★ 5
Great fit
Size: Medium, Color: White
Perfect fit and they don't slide off the back of your ankle.
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Reviewed in the United States on March 16, 2026

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