Yella Terra Holden VF LSA Stage 2 21% Overdrive Boost Upgrade Kit — YT LSAGTS-21

Yella Terra’s Stage 2 boost package is a complete bolt-on crank-drive upgrade for the supercharged Holden/HSV VF LSA. The 21% overdrive configuration increases supercharger speed from the crank side while retaining the factory upper blower pulley.

Easy Fit Modular Crank Drive System

• Designed, engineered and manufactured in Australia by Yella Terra.
• CNC precision-machined components with black anodised finish.
• 21% overdrive configuration for increased supercharger drive speed.
• Larger drive-pulley geometry increases belt wrap to help reduce belt slip.
• Avoids repeatedly pressing smaller pulleys on and off the supercharger shaft.
• Factory upper supercharger pulley remains in place.
• Compatible with suitable retrofit LSA engine installations.

Package contents

• Registered-design balancer / crank adaptor.
• Overdrive pulley.
• Coupler and belt specified for the package.

Required coupler: Yella Terra specifies that the original spring-style supercharger drive coupler must be replaced with a single-piece aftermarket unit. YT 1521 is the supplier’s heavy-duty replacement recommended with the GTS/LSA boost-upgrade packages.

Supporting setup: Fuel delivery, charge cooling, ignition and ECU calibration must be suitable for the resulting boost level and engine combination.

Product System

• Turbo & Forced Induction

Vehicle Fitment

• Holden Commodore Vf Vfii Lsa

Confirm chassis, engine, drivetrain and production-year compatibility before ordering.

Supplier Part Number

YT LSAGTS-21

Built by Boost & Tune Support

BBT can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.