GFB WGA Internal Wastegate Actuator - Mitsubishi Evo 4-8 (CN9A/CP9A/CT9A)
Application: Mitsubishi Evo 4-8 (CN9A/CP9A/CT9A)
Part Type: WGA Internal Wastegate Actuator
GFB built the WGA to solve the classic problem faced by anyone pushing more boost through a factory internal wastegate: boost taper, unstable curves, and a wastegate that simply can't keep up. Designed for the Mitsubishi Evo 4-8 running its factory turbo, the WGA replaces the OEM actuator with a compact, highly adjustable unit that gives you real control authority over the wastegate flap.
This listing covers the Mitsubishi Evo 4, Evo 5, Evo 6, Evo 7 and Evo 8, spanning the CN9A, CP9A and CT9A chassis codes, all fitted with the factory turbocharger.
Important: the WGA is a tuning tool, not just a bolt-on replacement. It will increase boost pressure over stock and tuning is required to run it safely.
Key Features
- Nomex-reinforced silicone diaphragm for maximum control authority in the smallest possible housing
- 18mm of rod travel - the longest stroke in its class for larger internal wastegates or extra boost range
- PEEK machined pivoting rod guide for low friction and long term wear resistance
- Turnbuckle adjustment allows fine tuning of base boost pressure in minutes, without swapping springs
- Three stainless steel springs supplied, adjustable from 5 psi to 22 psi in combination
- Part #7301 ships with 10 psi and 7 psi springs fitted for a 17 psi base pressure, plus a 5 psi spring included for further tuning
Vehicle Fitment
- Mitsubishi Evo 4-8 (CN9A/CP9A/CT9A)
Please confirm your Evo's chassis code and turbo configuration before ordering.
Supplier-listed applications:
- Mitsubishi Evo 4-8 (CN9A/CP9A/CT9A)
Note: Compatibility information is provided as a general guide only. Some vehicles may have multiple part variations for the same model or engine. To ensure this product is the correct fit and to be eligible for our Fitment Guarantee, please contact our team before purchasing.
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If you can’t find the part you need, please fill out our Fitment Finder or visit our Contact Us page. One of our expert team members will respond promptly to assist with your enquiry.
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Payment is completed during checkout. We accept all major payment methods via Shopify Payments including credit/debit cards, Apple Pay, Google Pay, and more. Direct bank transfer is also available please contact us at contact@tjautoparts.com.au for bank details and instructions.
How long will it take to process my order?
We aim to process and dispatch all orders within 1–2 business days. If there are any delays, we will notify you promptly via email.
What if I’ve seen a cheaper price elsewhere?
We always aim to offer the best value. If you’ve found a better price elsewhere, get in touch with us and we’ll do our best to match or beat it.
Where do the products come from?
All products are sourced directly from the manufacturer or authorised suppliers to ensure authenticity. Every item is backed by the manufacturer’s warranty.
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Yes, we offer trade accounts and pricing for qualified customers. To find out more or apply, simply email us at contact@tjautoparts.com.au and our team will assist you.
To see more FAQs visit our FAQs page or get in touch today.
Shipping Rates
We offer free standard shipping on all orders over $150 (excluding bulky items). For orders under $150. Standard shipping starts at $9.95. Express shipping starts at $14.95. Shipping costs can be calculated in the cart or at checkout. Orders containing bulky items such as batteries, brake discs, liquids, and lift kits may incur additional shipping charges, particularly to remote or regional areas.
Dispatch & Handling
We aim to process and dispatch all orders within 1-2 business days. In the event of any delays, our customer service team will notify you. Tracking numbers are sent via email once your order has been dispatched and can also be accessed from your account.
For enquires on same day delivery or pickup, please contact our team before ordering to check availability. Custom or order in only items may have longer lead times. For more details on shipping, see our Delivery information page.
Returns and Refunds
If you change your mind or need to cancel an order, simply contact us at contact@tjautoparts.com.au within 30 days of delivery. Items should be unused and in their original packaging. A small restocking/admin fee of 5–20% may apply to help cover processing costs. This fee is only applicable at the discretion of our staff and may not apply to all orders. Return shipping is covered by you unless we sent the wrong or faulty item, in which case we’ll take care of it. Once we receive your return, refunds are processed quickly, usually within 48 hours, with up to 5 business days for your bank to complete the transfer.
We’re here to help make returns easy and hassle free! Contact us with any questions.
Warranty
All products come with the manufacturer’s warranty. If you experience any issues, please contact us at contact@tjautoparts.com.au. For full details on warranty coverage and claims, please visit our Returns page.
