Hitech Headers HTH084 – Toyota Corona RT104 & RT118 2.0L 18RC (1974–1979)

Hitech HTH084 extractors are purpose-built for the Toyota Corona running the 2.0L 18RC engine. These Australian-made headers replace the restrictive factory cast manifold to improve low-end torque, throttle response, and overall drivability. Suitable for both manual and automatic models, they deliver a cleaner exhaust pulse and improved scavenging while maintaining reliable day-to-day performance.

Key Features

• Designed for Toyota Corona RT104 – perfect fitment for the 2.0L 18RC engine
• Performance extractors to improve torque and throttle response
• Direct-fit replacement for the factory manifold and front pipe
• Precision-machined flanges for durability and leak-free sealing
• Smooth collector design for improved flow and consistent power delivery
• Suitable for manual & automatic models
• These headers are made to order which may take 10-14 days

Construction

• Primary Pipes: 38mm [1.50"]
• Secondary Pipes: 45mm [1.75"]
• Outlet Size: 51mm [2.00"]
• Material: Mild Steel
• High-quality welds and robust construction for long service life
• Heat-resistant paint finish for added protection

Additional Options

• Gasket (HTG030) – sold separately

Installation Notes

• Protect painted surfaces during test fitting to avoid scratching
• Ensure engine mounts and steering components are in good condition to maintain clearance
• Recheck flange bolt torque after first heat cycle

In the Box

• 1 x Hitech Headers HTH084 Extractor Set

Recommended With

• Gasket: HTG030

Why Upgrade to Extractors?

The factory Corona 2.0L cast manifold is restrictive and often prone to cracking with age. Upgrading to extractors provides more efficient exhaust gas evacuation, leading to better drivability, improved mid-range torque, and a smoother overall engine feel. Perfect restorations, or anyone wanting better response from their classic Toyota Corona's.

Warranty & Compliance

• Backed by Hitech Headers 2-year warranty (standard terms apply)

Customer Support

For phone orders, expert fitment advice, or part enquiries – contact us:

📞 Call Now: +61 2 9547 3511 ✉️ Email Us

Best Mufflers
87A Planthurst Road, Carlton NSW 2218, Australia
Exhaust Systems Since 1983