These are high flow catalytic converters to suit the VE-VF Holden Commodore 3.0L LF1 and LFW and 3.6L LFX.

The stock cats are 400CPSI, installing these will allow for less restriction and opens up the engine for higher horsepower potential. Bolt on upgrade will give you a 10-15HP increase.

These are essential in our Stage 2 Tuning Options, especially if you want that really nice crackle tune we do. Please see the below video. These are true bolt on, no welding/cutting required if pairing up to an Xforce catback or other similar brand.

If you require tuning please see our tuning page. We recommend the downpipe resonator version if you are looking for big pop or crackle on deceleration. They also sound deeper and less raspy.

Please note aftermarket exhausts won’t pass emissions or noise tests and is for off-road use only.

NOTE:
These do not suit LLT, LWR, LY7, LE0, LCA engines.
May not suit stock exhaust systems without modifying.