pacemaker-3-inch-exhaust-tri-y-headers-hsv-vy-s2-vz-5-7l-v8-ute

Pacemaker Full 3" Performance Exhaust System with Tri-Y Headers & Hi-Flow Cats for HSV VY Series 2 & VZ Utility (5.7L Gen III V8) - PP5367-77

Unleash devastating low-to-mid range torque, optimize scavenging velocity tracking, and extract a rich, deep Australian muscle car roar from your high-performance small-block engine with the Pacemaker Sport Systems full 3-inch performance exhaust solution featuring high-efficiency Tri-Y tuned extractors. Specifically configured to maximize power curves on the elite HSV 5.7L Gen III V8 commercial performance architecture, this premium package pairs race-bred performance hardware with a fully muffled intermediate and rear system. Custom-molded specifically to match the utility floor pan lines, clear flat cargo load beds, and map perfectly around vehicle-specific rear suspension layouts, it completely eliminates power-robbing backpressure under wide-open throttle transitions. As Australia’s premium exhaust innovator, Pacemaker integrates elite structural engineering with 3" metallic high-flow catalytic converters, patented V-Tex technology, and signature double-skinned mufflers, producing an authoritative performance roar on throttle while actively engineering out harsh interior cabin boom or open cargo tray resonance to preserve a completely clean, drone-free cruising experience.

Note: Fits HSV VY Series 2 and VZ Utility (Ute) variants built from August 2003 onwards equipped with the 5.7L Gen III V8 engine layout; does not fit Sedan, Station Wagon, One Tonner, or later VE/VF generation platforms due to significant chassis length, structural floor contour, and hanger position variations.

Features:

Precision-manufactured in Australia to deliver a heavy-duty large-bore flow upgrade, exceptional structural longevity under intense heat, and a refined performance acoustic profile for the classic high-performance utility platform.

• Complete Performance Kit: Comprehensive track-and-street performance upgrade incorporating premium tuned Tri-Y headers, 3" high-flow metallic catalytic converters, and a matching full 3-inch intermediate piping route with high-efficiency mufflers.
• Tuned Tri-Y Design Architecture: Secondary-paired pipe layout engineered specifically to build exceptional low-to-mid range torque response, making it the perfect upgrade for heavy utility chassis acceleration tracking.
• Utility Specific Clearance: Custom-tailored plumbing path configured to route cleanly beneath flat cargo bed structures, drop-sides, and vehicle-specific commercial chassis lines.
• Premium Materials: Constructed completely from durable, heavy-gauge Exhaust Grade 409 Stainless Steel to ensure superior structural longevity and resistance to thermal fatigue.
• Large-Bore Mandrel Bent Tubing: Rigid full 3" (76.2mm) pipe structure guarantees a smooth, uniform internal diameter through all bends to eliminate gas turbulence and prevent flow restriction.
• V-Tex Technology: Advanced internal patented anti-drone configuration filters out harsh, low-frequency cabin resonance typical of open utility cabs without restricting gas velocity footprints.
• Signature Mufflers: Heavy-duty double-skinned 409 Stainless Steel mufflers offer premium outer case reinforcement, preventing case distortion and internal packing blowout under heavy thermal load constraints.
• Direct Bolt-On Layout: Engineered as a comprehensive, vehicle-specific full bolt-up kit that mounts directly onto existing factory rubber hanger positions—no custom fabrication required.

Vehicle Applications:

Important Fitment Notes:

• Specifically engineered to fit HSV VY Series 2 and VZ Utility (Ute) configurations powered by the 5.7L Gen III V8 engine layout.
• Utility Specific Routing Geometry: Designed strictly to conform around traditional VY/VZ commercial floor lines, under-tray structural paths, and rear subframe hanger anchors. It will not adapt to Sedan, Station Wagon, One Tonner, or later generation VE/VF utility platforms due to major blueprint specification layout variations.
• Full kit scope: Comprehensive high-efficiency performance solution from engine block to rear exit, including tuned Tri-Y headers, premium 3" high-flow metallic catalytic converters, 3" intermediate plumbing paths, and a signature double-skinned rear muffler assembly.
• Direct full bolt-up architecture interfaces seamlessly with original vehicle-specific rubber hanger brackets. No custom modification or cutting layout mapping is required.
• Professional automotive performance technician installation is highly recommended to guarantee ideal ground clearance, check steering column tolerances, verify proper pipe routing, and ensure completely gas-tight structural seals under the floor pan.

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