Pacemaker 2.5" Exhaust System with Tri-Y Headers for HSV VT VX VY S1 V8 1999–2003 - PP5367-12

Pacemaker 2.5" Performance Exhaust System with Tri-Y Headers & Rear Pipe Only for HSV VT-VY Series 1 V8 - PP5367-12

Unlock the torque and an ultra-aggressive V8 bark from your 5.7L LS1 engine with the Pacemaker Sport Systems complete exhaust solution. Specifically engineered for the HSV VT, VX, and VY Series 1 Sedan platform, this high-flow setup is configured with a high-volume "Rear Pipe Only" exit plan instead of a standard rear muffler assembly. This premium kit features precision-tuned Tri-Y headers for optimized low-to-mid range scavenging paired with a mandrel-bent 2.5" system. As Australia’s top manufacturer, Pacemaker utilizes signature engineering to deliver maximum exhaust gas velocity while providing a direct performance tone that stands out. Note: Fits HSV VT, VX, and VY Series 1 Sedan models (1999–2003) equipped with the 5.7L LS1 V8 engine.

Features:

Precision-manufactured in Australia to deliver the ultimate balance of heavy-duty flow efficiency, raw acoustic output, and long service life for the LS1 HSV platform.

• Complete Headers Setup: Total kit featuring high-performance Tri-Y 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.
• Tri-Y Extractors: Specifically optimized to maximize mid-range torque delivery and sharpen throttle response on LS1 platforms.
• Premium Materials: Constructed using top-tier Exhaust Grade 409 Stainless Steel for excellent service life.
• Mandrel Bent Tubing: 2.5" (63mm) 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.

Important Notes:

• Specifically engineered for HSV VT, VX, and VY Series 1 Sedan models (1999–2003).
• Full system scope: Includes Performance Tri-Y Headers, 3" High-Flow 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 louder, unfiltered acoustic profile compared to full-muffler configurations.
• Professional automotive technician installation is highly recommended to ensure precise alignment and ideal body clearance.

Vehicle Applications:

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