Manta | Twin 2.5″ Full Exhaust System with 51mm Tuned Headers | Holden HQ–HZ Kingswood Premier GTS Sedan CHEV 454 V8 1971–1980

Manta Twin 2.5″ Full Exhaust System with 51mm Tuned Headers for Holden HQ–HZ Kingswood Premier GTS Sedan CHEV 454 V8 1971–1980 – Aluminised Steel

Upgrade your Holden HQ–HZ with this Twin 2.5″ Full Exhaust System featuring 51mm tuned headers. Crafted in aluminised steel, this DIY kit delivers improved flow for the CHEV 454 big block, a strong medium note, and durability built for Australian roads.

Warranty

Stainless Steel Systems – 10 years
Aluminised Systems – 2 years

Why Manta?

Manta specialises in total exhaust engineering for performance, durability, appearance and sound. Designed and manufactured in Australia, every Manta system is built tough for local conditions.

Key Features:

• Performance Upgrade: Designed for CHEV 454 big block HQ–HZ Sedan
• Material: Aluminised Steel
• Sound Level: Medium
• Direct Bolt-On Fitment: DIY kit – modifications and welding may be required
• Header Size: 51mm Tuned Headers
• Pipe Size: 2.5″ Twin
• System Type: Full System

Technical Specifications

• Brand: Manta
• Part Number (SKU): MKHN0462
• System Type: Full System
• Pipe Size: 2.5″ Twin
• Material: Aluminised Steel
• Noise Level: Medium
• Header Size: 51mm Tuned Headers

Vehicle Fitment Information

Important Information

• The image shown may not reflect the actual product
• This system is a DIY kit. Some modifications and welding may be required
• Shipping times may vary depending on destination and stock availability

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