Upgrade your 1JZ engine with our CNC-machined billet aluminum adapter plate, designed to perfectly convert the OEM Toyota 1JZ-GTE or 1JZ-GTE VVTI throttle body flange to accept a Bosch 74mm Drive-by-Wire (DBW) throttle body.
 
Precision-engineered for perfect alignment and sealing, this adapter eliminates the need for custom fabrication while maintaining a clean OEM-style fit and finish.
 
Key Features:
 
Direct Fitment: Converts OEM 1JZ-GTE or 1JZ-GTE VVTI throttle flange to a Bosch 74mm DBW pattern. Retains Same Overall Length as OEM Throttle Body
CNC Machined Billet Construction: Made from high-grade 6061-T6 aluminum for maximum strength and precision.
O-Ring Sealed Design: Both sides of the adapter use O-ring grooves to ensure a leak-free, reliable seal under boost.
Complete Hardware Kit: Includes all necessary stainless steel mounting bolts and O-rings for quick installation.
 
Note:

This listing includes the adapter plate only. We also offer:
 
Front adapter (Bosch throttle body to hose connection)
Bosch 74mm DBW throttle body (available separately)
 
Perfect for those converting to modern DBW setups or upgrading to standalone ECUs — this adapter ensures OEM precision with race-level quality.