One area the L15B7 needed immediate improvement was the throttle body, the OEM throttle body measures 56mm at the opening but tapers down to a narrow 50.5mm at the manifold.
This taper chokes incoming air and robs the engine of potential power.
BLOX Racing's newest throttle bodie is available in a 58mm size, with minimal tapering.
Each is CNC machined from billet aluminum and incorporates a new drive-by-wire motor.
BLOX Racing has spent months road testing making sure there was not corruption between the drive-by-wire motor and ECU.
The larger throttle bodies offer increases in airflow resulting in additional horsepower and torque gains.
Throttle bodies include hardware and reuse the factory's O-ring gasket.
Stock: opening measures 56mm and tapers to 50.5mm
58mm: opening measures 58mm and tapers to 56mm (+15% larger than stock)