4GR-FSE Ported Intake Manifold Set | Lexus IS250 / GS250 Nissan Silvia S14 The ICE BOX and catch

The ICE BOX and catch can each include a QR code linking to a full installation video

this is the perfect time to add E85 fueling

cooler temps

High oil temps and overheated transmission fluid are two of the most common causes of long-term engine and drivetrain wear on VQ and VR platforms

Infiniti Q50

4GR-FSE Ported Intake Manifold Set | Lexus IS250 / GS250 Nissan Silvia S14 The ICE BOX and catchYour factory 4GR FSE manifold restricts airflow right where it matters most. This ported upper and lower manifold set opens up the runners for smoother airflow, better throttle response, and real gains across the RPM range hand finished, not mass produced. Key Benefits Upper manifold features expanded, smoothed runners for increased volume and velocity Lower manifold fully ported and polished for a seamless transition to the cylinder head Hand