Pacemaker 3" Performance Exhaust System with Tri-Y Headers for HSV VY Series 2 VZ 5.7L V8 Sedan (Rear Pipe Only) - PP5367-63

Pacemaker Full 3" Performance Exhaust System with Tri-Y Headers & Hi-Flow Cats for HSV VY Series 2 & VZ Sedan (5.7L Gen III V8) - Rear Pipe Only Layout - PP5367-63

Unleash devastating low-to-mid range torque, optimize scavenging velocity tracking, and extract a raw, track-inspired muscle car bark from your engine block 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 sedan architecture (LS1 powerplants), this premium package pairs race-bred performance hardware with an aggressive, straight-through rear section design. Custom-molded specifically to match the sedan floor pan lines, clear standard wheelbase chassis channels, and map perfectly around vehicle-specific rear suspension layouts, it completely eliminates power-robbing backpressure under wide-open throttle transitions. This track-biased version features a specialized 'Rear Pipe Only' layout configuration that deletes standard rear restrictive mufflers, completely opening up your vehicle's external sound fields. As Australia’s premium exhaust innovator, Pacemaker combines this heavy-hitting flow with 3" metallic high-flow catalytic converters and heavy-duty Tri-Y primary runs, generating an uncompromising acoustic statement when accelerating while ensuring straightforward, direct bolt-up compatibility underneath your performance sedan platform.

Note: Fits HSV VY Series 2 and VZ Sedan variants built from August 2003 onwards equipped with the 5.7L Gen III V8 engine layout; does not fit Utility (Ute), Station Wagon, or long-wheelbase 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 raw, track-biased performance acoustic profile.

• Complete Performance Kit: Comprehensive track performance upgrade incorporating premium tuned Tri-Y headers, 3" high-flow metallic catalytic converters, and a matching full 3-inch performance intermediate-to-rear layout path.
• 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 vehicle acceleration tracking.
• Rear Pipe Only Configuration: Stripped-back straight tailpipe construction deletes the rear mufflers to maximize volumetric gas velocity while establishing an exceptionally loud, crisp, uncompromised V8 acoustic bark.
• Sedan Specific Clearance: Custom-tailored plumbing path configured to route cleanly beneath standard sedan floor contours, rear subframes, and vehicle-specific rear exit 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.
• 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 Sedan configurations powered by the 5.7L Gen III V8 engine layout.
• Sedan Specific Routing Geometry: Designed strictly to conform around standard VY/VZ sedan floor contours, central underbody space layouts, and rear subframe hanger anchors. It will not adapt to Utility (Ute), Station Wagon, or later generation platforms due to major structural blueprint specification variations.
• Acoustic Profile Note: This specialized setup features a straight-through rear pipe configuration with no rear acoustic muffler boxes. It will generate an exceptionally aggressive, highly pronounced V8 racing tone that is significantly louder than muffled sports applications.
• 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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