Pacemaker 2.5" Exhaust System with 1 3/4" Headers for HSV VY S2 VZ 5.7L V8 Ute 2003–2006 - PP5361-35

Pacemaker 2.5" Full Performance Exhaust System with 1 3/4" Tuned Headers for HSV VY Series 2 & VZ Ute (5.7L V8) - PP5361-35

Unlock massive horsepower gains and unleash the deep, uncompromised muscle roar of your 5.7L LS1 engine with the Pacemaker Sport Systems complete 2.5" performance exhaust solution. Specifically engineered to clear the distinct utility floor pan, chassis layout, and high-performance independent rear suspension of the HSV VY Series 2 and VZ Utility platforms, this heavy-breathing configuration handles high-output applications seamlessly. Featuring 1 3/4" primary tuned headers paired with a balanced 2.5" mandrel-bent layout, it delivers maximum exhaust gas velocity making it the ultimate match for cammed, modified, or high-scavenging 5.7L builds. As Australia’s premium exhaust innovator, Pacemaker integrates elite acoustic engineering with patented V-Tex technology and double-skinned mufflers to offer an aggressive exterior rumble while completely counteracting intrusive cabin drone. Note: Fits HSV VY Series 2 and VZ Utility (Ute / Maloo) models (2003–2006) equipped with the 5.7L LS1 V8 engine.

Features:

Precision-manufactured in Australia to deliver the absolute peak in flow efficiency, scavenging performance, and refined depth of sound for the high-performance HSV utility platform.

• Complete Tuned Kit: Comprehensive setup incorporating primary tuned headers, high-flow cats, and a full 2.5" exhaust line.
• 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.
• V-Tex Technology: Advanced internal anti-drone configuration filters out harsh cabin boom frequencies while retaining deep exterior exhaust notes.
• Signature Mufflers: Double-skinned 409 Stainless Steel mufflers offer superior casing strength and refined tonal control.
• 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 HSV VY Series 2 and VZ Utility (Ute / Maloo) platforms powered by the 5.7L LS1 engine (2003–2006).
• Utility Specific Chassis Layout: This configuration features tailor-formed exhaust pipe lengths, specific bend profiles, and bracket placements designed precisely to mount cleanly under the utility tray and floor layout. It will not adapt correctly to Sedan or Station Wagon models.
• Full kit scope: Includes 1 3/4" Tuned Performance Extractors, 3" High-Flow Metallic Catalytic Converters, and a complete 2.5" Performance Cat-Back assembly with signature double-skinned mufflers.
• 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 under the tray.

Vehicle Applications:

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