Holley EFI 112-589 Billet LS Throttle Body Cable Driven with Low RPM Taper - 90mm

The Holley EFI 112-589 is a premium billet aluminum 90mm throttle body designed specifically for LS engine applications. This cable-driven throttle body features an innovative tapered transition design that eliminates the low RPM drivability issues commonly associated with large bore throttle bodies, delivering smooth performance across the entire RPM range.

Key Features:

• 90mm Billet Construction: CNC-machined from premium billet aluminum with a black anodized finish for superior corrosion resistance and a professional appearance
• Tapered Transition: Eliminates low RPM drivability problems while maximizing high RPM airflow potential
• Cable Driven Design: Traditional throttle cable operation with built-in cruise control provision for cruise control cable integration
• Adjustable Idle Bleed: Allows precise idle adjustment without affecting throttle position or TPS voltages
• TPS Clocker Feature: Enables TPS rotation to bring idle voltage back into ECU's required range, solving common issues with modified engines
• PCV Passage Valve: Closes to accommodate forced induction applications without requiring additional blocking modifications
• Complete Hardware Included: Comes with all necessary mounting hardware and gasket for straightforward installation

Compatibility: Fits stock LS2, LS3, and LS7 intake manifolds, as well as Holley LS Mid-Rise, Holley 95mm Hi-Ram, FAST LSX, Edelbrock Pro-Flo XT, and most other 90-95mm LS intakes using 4-bolt throttle body mounting patterns.

This throttle body is ideal for naturally aspirated and forced induction LS builds where maximum airflow and precise tunability are essential for performance.