Yella Terra L67 Billet Snout Kit 87/82/77mm

Yella Terra Holden L67 billet supercharger snout boost upgrade kit

Yella Terra Holden L67 Billet Snout Boost Upgrade Kit — 87mm / 82mm / 77mm

$1,150.00

Yella Terra’s billet-snout boost system replaces the factory Holden/Buick L67/L32 supercharger front cover with a precision-engineered billet-alloy snout and new cast-alloy cover. The quick-change four-bolt pulley system allows boost-ratio changes without specialised press-on / press-off pulley tools.

87 mm / 82 mm / 77 mm pulley package

Selectable 87 mm, 82 mm and 77 mm blower pulleys.
All three pulley sizes can be used without an intercooler according to Yella Terra.
The 77 mm pulley requires ECU tuning.
On Yella Terra’s stock-standard L67 automatic test vehicle, maximum rear-wheel power increased by up to approximately 25% and torque by up to approximately 50% across a broad rev range. Results vary with vehicle and engine setup.
Yella Terra describes the complete snout conversion as installable in less than approximately two hours by a suitably equipped installer.

Kit contents

Supercharger end case.
Alloy extension housing.
Anodised alloy top pulley.
Oversize idler pulley to take up belt slack.
GM supercharger gasket.
Front-cover sealant.
Supercharger oil.
Detailed fitting instructions.

Important: Boost varies with the complete engine combination. Overdriving the supercharger increases operating speed and can accelerate wear. The 77 mm option requires calibration.