These lower engine mounts for the NT1 are made from tough alloy and incorporate factory-pressed (non-replaceable) locating pins. Lowered by 1.5mm compared to standard engine mount, this allows the engine to sit lower and get the weight as low as possible and lower the CG of the car. This makes the car more stable and roll less, reducing the chances of traction roll. This must be used with the #331103 NT1 Chassis 2012 and #338534 Aluminium Flywheel Reverse XCA- Flat 30mm.
#338717 Xray NT1 Aluminium Engine Mounts – Thin – Lower (2)
Source: Xray