HKS Grommet Type Head Gasket FA24 t=1.2 PDM_water-and-meth-injection-components and your spark plugs look

and your spark plugs look good then your O2 sensor can be going out as well

sounds exactly right for the platform

Durable steel tubing construction

Megan Racing H-Brace Lexus IS300 01-05 Front RallySport Direct now offers a great selection of quality suspension enhancements brought to you by Megan Racing

HKS Grommet Type Head Gasket FA24 t=1.2 PDM_water-and-meth-injection-components and your spark plugs lookHKS Grommet Type Head Gasket FA24 t=1. 2 Performance Head Gasket for High Boost Applications HKS performance head gaskets use grommet type or stopper bead type sealing designs that provide superior cylinder sealing under high pressure vs the OEM multi layer steel gasket. The grommet design creates an independent sealing ring around each combustion chamber bore that embeds into the deck surface under torque, maintaining a positive seal through thermal