SKU: 48329273917

Pacemaker | 1⅝" Tri-Y Performance Headers | HSV AWD Coupe 4, Avalanche & XUV 5.7L | PH5366 L/R HSV Kit

Sale price$497.24 Regular price$552.49
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

Pacemaker | 1⅝" Tri-Y Performance Headers | HSV AWD Coupe 4, Avalanche & XUV 5.7L | PH5366 L/R HSV KitPacemaker Tri Y Performance Headers HSV VY VZ AWD Coupe 4, Avalanche & Avalanche XUV 5. 7L Gen III PH5366 L R HSV Kit Unlock the performance potential of your All Wheel Drive HSV with the Pacemaker PH 5366 Tri Y Performance Headers. Specifically engineered for the unique chassis requirements of the AWD Coupe 4, Avalanche Wagon, and Avalanche XUV Ute, these headers provide a significant upgrade over factory manifolds. The Tri Y design is precision

Pacemaker Tri-Y Performance Headers - HSV VY-VZ AWD Coupe 4, Avalanche & Avalanche XUV 5.7L Gen III - PH5366 L/R HSV Kit

Unlock the performance potential of your All-Wheel Drive HSV with the Pacemaker PH 5366 Tri-Y Performance Headers. Specifically engineered for the unique chassis requirements of the AWD Coupe 4, Avalanche Wagon, and Avalanche XUV Ute, these headers provide a significant upgrade over factory manifolds. The Tri-Y design is precision-tuned to maximize exhaust scavenging, enhancing the torque and power delivery of the 5.7 Litre Gen III engine. Constructed with 1⅝" (41mm) primary pipes and 1⅞" (48mm) secondaries, this kit ensures optimal exhaust flow while maintaining essential clearances for power steering and air conditioning systems. Designed for automatic transmission models, these headers offer the high-quality, bolt-on performance Pacemaker is known for.

Features:

This product offers the following performance features:

  • AWD Optimized: Custom-designed specifically for the HSV All-Wheel Drive (AWD) chassis.
  • Tri-Y Design: Pulse-matched design to increase low-to-mid range torque, ideal for heavy-duty performance and daily driving.
  • Premium Construction: Mandrel-bent 1⅝" (41mm) primary and 1⅞" (48mm) secondary pipes for superior exhaust velocity.
  • High-Flow Outlet: Features a 2½" (63mm) outlet to support increased power levels.
  • System Compatibility: Fully compatible with Power Steering and Air Conditioning systems.
  • Precision Engineering: Designed to fit HSV VY and VZ models with the 5.7L Gen III engine and automatic transmission.
Product Specifications for PH 5366
Feature Value Feature Value
Part # PH 5366 Gasket DSF 138
Primary Pipe 1⅝" (41mm) Secondary Pipe 1⅞" (48mm)
Outlet 2½" (63mm) Oxy Sensor Yes
P/Steering Yes Fitting Time 3 Hrs

Important Notes:

  • Wiring Extensions: Models VY Series II and VZ require Oxygen Sensor Wiring Loom Extensions (VY Series II: PEX5367Y x 1; VZ 5.7L: PEX5367Z x 1).
  • Transmission: Specifically designed for Automatic transmission models.

Important Information

  • The image shown may not reflect the actual product
  • Shipping times may vary depending on destination and stock availability

Vehicle Applications:

Make Model From To Body Series Engine Variant Drivetrain
HSV Coupe 4 / Avalanche / Avalanche XUV 2003 2006 Coupe / Wagon / Ute VY - VZ 5.7L Gen III V8 Automatic AWD
Warranty Information
Product Warranty Period
Pacemaker Headers Two (2) years.
Pacemaker King Brown 4x4 Exhaust systems Five (5) years.
Pacemaker Sports exhaust systems Five (5) years.
Fabrication products and accessories One (1) year.

Payment & Security:
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

 

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Pacemaker Tri-Y Performance Headers - HSV VY-VZ AWD Coupe 4 / Avalanche / XUV 5.7L V8 - PH 5366 L/R HSV Kit

Unlock the performance potential of your All-Wheel Drive HSV with the Pacemaker PH 5366 Tri-Y Performance Headers. Engineered specifically for the rare AWD HSV line-up, including the VY-VZ Coupe 4, Avalanche wagon, and Avalanche XUV ute, these headers are designed to clear the complex AWD drivetrain while providing substantial gains in power and torque. The Tri-Y design focuses on optimizing exhaust scavenging for the 5.7 Litre Gen III LS1 engine, ensuring improved throttle response and a deep, aggressive V8 note. Built with mandrel-bent 1⅝" (41mm) primary pipes and 1⅞" (48mm) secondaries, these headers provide the high-flow efficiency needed for both street performance and heavy-duty use. Proudly Australian-made, this kit is specifically tailored for automatic transmission models.

Features:

This product offers the following performance features:

  • AWD Specific Engineering: Custom-designed to fit the unique chassis and drivetrain of HSV All-Wheel Drive models.
  • Tri-Y Scavenging: Optimized pipe routing to maximize mid-range torque and horsepower.
  • High-Flow Construction: 1⅝" (41mm) primaries and 1⅞" (48mm) secondaries ensure smooth, unrestricted exhaust velocity.
  • LS1 V8 Performance: Specifically tuned for the 5.7 Litre Gen III engine for optimal efficiency.
  • Full Accessory Clearance: Maintains complete clearance for Power Steering and Air Conditioning systems.
  • Precision Fitting: Designed for a high-quality fit on HSV VY and VZ AWD series.
Product Specifications for PH 5366
Feature Value Feature Value
Part # PH 5366 Gasket DSF 138
Primary Pipe 1⅝" (41mm) Secondary Pipe 1⅞" (48mm)
Outlet 2½" (63mm) Oxy Sensor Yes
P/Steering Yes Fitting Time 3 Hrs

Important Notes:

  • Wiring Extensions: Models VY Series II and VZ require Oxygen Sensor Wiring Loom Extensions.
  • VY Series II: Requires Part No PEX5367Y x 1.
  • VZ 5.7Ltr: Requires Part No PEX5367Z x 1.
  • Transmission: Specifically designed for Automatic models.

Important Information

  • The image shown may not reflect the actual product
  • Shipping times may vary depending on destination and stock availability

Vehicle Applications:

Make Model From To Body Series Engine Variant Drivetrain
HSV Coupe 4 / Avalanche / Avalanche XUV 2003 2006 Coupe / Wagon / Ute VY - VZ 5.7L Gen III LS1 Automatic AWD
Warranty Information
Product Warranty Period
Pacemaker Headers Two (2) years.
Pacemaker King Brown 4x4 Exhaust systems Five (5) years.
Pacemaker Sports exhaust systems Five (5) years.
Fabrication products and accessories One (1) year.

Payment & Security:
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 48329273917

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4.1 ★★★★★
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artzkitten
Draper, US
★★★★★ 5
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This has been a great activity for our dog and really sturdy for our super chewer. We don’t let her have it alone but she has been known to saw through a few ropes while playing tug.
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Reviewed in the United States on May 25, 2026
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alex matteson
San Leandro, US
★★★★★ 5
Great rope for dogs that destroy all their toys
Style: 5 KNOTS
So this product is not dog proof but man is it higher quality than others on the market. One of them is a shredder, anything she can get her paws and teeth on she’s ripping apart with all her might, it’s impressive if a stuffed toy lasts 5 minutes. We have tried lots of different materials and toys and this thing is great. It’s not saturated in drool and does not smell after they play all day. It is a large heavy rope so would be cautious if your large dogs likes to thrash. Our big boy doesn’t and it’s too large for our medium sized dog to thrash. Might be a little pricier than others but the extra money is well worth it. 85 lbs rottie mix and 25 lbs terrier mix in the video, we were just moving in so ignore the boxes lol
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Reviewed in the United States on March 2, 2026
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Kahlua's Mom
Lowell, US
★★★★★ 5
Great rope, but not for aggressive chewers
Style: 5 KNOTS
This is a great rope, but if your dog is a aggressive chewer, don't buy it. My Doberman chews everything, she destroyed this rope into many pieces, after only having it for 3 days.I swear she would chew iron into pieces. Now she has only bones to chew on....
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Reviewed in the United States on February 7, 2026
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Huxley
Natrona Heights, US
★★★★★ 4
New Rope for my Pit Bulls
Style: 5 KNOTS
When I received this from Amazon delivery my pit bull mix went crazy on the rope, and she chew on it for the longest time. Then, I played keep away but that lasted a short time. The rope is very strong and long for me to play with my pit bull mix she wants me to play tug a war with her. She will win every time, I do enjoy her every day, makes me happy that she mine. Price is very reasonable and color was very good and lasted a long time too. I buy again soon as she wear this one out.
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Reviewed in the United States on June 22, 2025
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CC
Los Angeles, US
★★★★★ 5
Strongest rope toy
Style: 5 KNOTS
Great tough long lasting rope for my two labs who are constantly playing tug of war with it!
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Reviewed in the United States on May 21, 2026

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