Go Fast Bits GFB WGA Internal Wastegate Actuator for Subaru Impreza 2002-2007

Description

The Go Fast Bits WGA internal wastegate actuator offers a significant upgrade in boost control and turbo performance for Subaru Impreza models from 2002 to 2007. Designed with an industry-first silicone/Nomex diaphragm and innovative bead retention, this actuator maximizes effective area while maintaining a compact size, resulting in enhanced control authority over the wastegate flap. This design provides more precise boost regulation, enabling faster spool-up and reducing boost taper at high RPMs, which translates into improved acceleration and engine responsiveness. Its robust construction ensures durability and consistent performance under demanding conditions. The WGA’s longer 18mm stroke allows for controlling even the largest internal wastegates or increasing boost pressure without spring changes, offering versatile tuning options. The unique pivoting rod guide, machined from high-performance PEEK polymer, reduces height and friction, ensuring smooth operation and low wear over time. With its short overall length, the WGA fits seamlessly into your turbo system without unnecessary bulk, preserving space and ease of installation. Fine-tuning boost levels is quick and straightforward thanks to the industry-first turnbuckle adjustment feature, which allows precise pre-load modifications without spring swaps or actuator removal. Included with the WGA are three stainless steel springs, supporting boost pressures from 5 to 22 psi, giving you flexibility to match your desired performance profile. Compatible with bolt-on or universal kits, this high-performance actuator replaces the factory turbo’s original component, providing faster spool-up, more stable boost control, and support for higher boost pressures, especially beneficial for enthusiasts seeking to maximize turbo capabilities on Subaru Impreza models. Whether you’re building a street or race setup, the GFB WGA offers a reliable and adjustable solution for demanding turbo applications, delivering consistent, tunable boost performance and better overall engine response.

Features:

• Industry-first silicone/Nomex diaphragm with bead retention for increased effective area

• 18mm stroke for controlling large internal wastegates or increasing boost pressure

• Pivoting rod guide machined from PEEK for low friction and superior wear resistance

• Compact design with minimal bulk to fit easily in tight spaces

• Turnbuckle adjustment for quick and precise boost fine-tuning without spring changes

• Supports boost pressures from 5 to 22 psi with included stainless steel springs

• Compatible with bolt-on or universal installation kits

• Replaces factory turbo actuator for faster spool-up and more stable boost control

• Designed specifically for Subaru Impreza models from 2002 to 2007

Fitment:
Subaru Impreza WRX 2002
Subaru Impreza WRX 2003
Subaru Impreza WRX 2004
Subaru Impreza WRX 2005
Subaru Impreza WRX 2006
Subaru Impreza WRX 2007