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Description
Pacemaker 2.5" Exhaust System with 1 7/8" Headers for HSV VY S2 VZ 5.7L V8 2003–2006 - PP5363-13Pacemaker 2. 5" Performance Exhaust System with 1 7 8" Tuned Headers & Rear Pipe Only for HSV VY Series 2 & VZ Sedan (5. 7L V8) PP5363 13 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 HSV VY Series 2 and VZ Sedan platforms, this high flow setup is configured with a high volume "Rear Pipe Only"
Pacemaker 2.5" Performance Exhaust System with 1 7/8" Tuned Headers & Rear Pipe Only for HSV VY Series 2 & VZ Sedan (5.7L V8) - PP5363-13
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 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 smooth 2.5" 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 2.5" (63.5mm) 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 PP5363-13 | |||
|---|---|---|---|
| Brand | Pacemaker Sport Systems | Part # / SKU | PP5363-13 |
| Product Type | Headers & Full Exhaust System | Primary Header Size | 1 7/8" (47.6mm) Tuned Primaries |
| Material | 409 Grade Stainless Steel | Piping Size | 2.5" (63.5mm) 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 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 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 |
| Product | Warranty Period |
|---|---|
| Pacemaker Sports Exhaust Systems | Five (5) years. |
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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.
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