Hybrid Racing 75mm PRB K Series Throttle Body
Hybrid Racing 75mm PRB K Series Throttle Body
Hybrid Racing

Hybrid Racing 75mm PRB K Series Throttle Body

SKU: HYB-THB-01-07

$399.99
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Hybrid Racing 75mm PRB Throttle Body – Direct-Fit K-Series Upgrade

This direct-fit throttle body is designed for K-Series builds that use PRB/PRC manifolds. It bolts directly to RSX Type-S and EP3 Civic Si intake configurations and is suitable for K-swapped CR-Vs and other PRB-style setups that require more airflow without extensive fabrication. Note: the OEM throttle cable bracket location can require minor adjustment when paired with certain short ram intake configurations. For your installs, plan accordingly to ensure clean cable routing.

What this means for your installs

  • Full 75mm bore machined from 6061-T6 aluminum to reduce intake restrictions and maximize airflow when paired with a PRB/PRC manifold, header, exhaust, and tune. Ideal for NA builds or boosted setups that need breathing room at high rpm.
  • Direct bolt-on fitment to PRB/PRC-style manifolds (no adapters or porting required), with a revised throttle rotor for smoother, more linear pedal feel and improved controllability at low rpm and under full throttle.
  • Durable construction features staked butterfly plate screws and double-sealed roller bearings to endure repeated heat cycles, plus an integrated thermal insulation gasket to reduce heat soak during long pulls.
  • Updated throttle cable bracket geometry for cleaner routing in typical K-series engine bays, plus dual stainless throttle return springs to provide a consistent, positive pedal return.

Fitment notes and install considerations

  • Compatible with PRB/PRC-style manifolds and other PRB throttle body replacement options, without adapters or porting. Some combinations with certain intake configurations may require minor bracket alignment adjustments.
  • Designed to support higher rpm and future upgrades in K20A2/K20Z1 swaps and PRB-style intake setups, reducing the need for rework as power goals evolve.

SKU and contents

Base throttle body: HYB-THB-01-07. Optional plugs to accommodate MAP and/or IACV sensors for your customers’ configurations:

  • HYB-BUN-01-TB5 — Add MAP Sensor Plug
  • HYB-BUN-01-TB6 — Add IACV Plug
  • HYB-BUN-01-TB7 — Add MAP & IACV Plugs

Option Summary: Contents include the Throttle Body and any selected MAP/IACV plug additions.

Common use cases for your shoppers

Customers building PRB-style K-swapped vehicles—whether using RSX Type-S/EP3 Civic Si-inspired configurations or other PRB-style intakes—will benefit from increased airflow, higher RPM capability, and a robust, repeatable throttle response. The part supports bigger cams, higher rpm, and future upgrades without reworking the existing intake setup.