Pacemaker 2.5" Exhaust System with 1 3/4" Headers for Holden VY S2 VZ 5.7L V8 Wagon 2003–2006 - PP5361-39

Pacemaker 2.5" Performance Exhaust System with 1 3/4" Tuned Headers & Rear Pipe Only for Holden VY Series 2 & VZ Wagon (5.7L V8) - PP5361-39

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 to clear the distinct floor pan and rear bumper geometry of Holden VY Series 2 and VZ Station Wagon platforms, this high-flow setup replaces the standard rear tail muffler assembly with a high-volume "Rear Pipe Only" section. Featuring 1 3/4" primary tuned headers paired with a balanced 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 top-end performance and an intense sound profile. Note: Fits Holden VY Series 2 and VZ Wagon 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 long-roof Commodore platform.

• Complete Headers Setup: Total kit featuring 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 3/4" Tuned Headers: Proven primary tube design engineered to optimize mid-to-high end power potential and 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.

Important Fitment Notes:

• Specifically engineered to fit Holden VY Series 2 and VZ Station Wagon platforms powered by the 5.7L LS1 engine (2003–2006).
• Wagon Specific Floorpan: This configuration features tailor-formed exhaust pipe lengths and bends designed precisely to mount cleanly under the wagon layout and will not adapt correctly to Sedans or Utes.
• Full kit scope: Includes 1 3/4" 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:

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