Help reduce potential detonation, carbon buildup on intake valves and protect from oil blow-by.
Help reduce potential detonation, carbon buildup on intake valves and protect from oil blow-by.
The ultimate breather can kit for the C4 AAN S4/S6, everything needed for a clean, OEM-type conversion
2X Entries Into Our F80 M3 Sweepstakes
Replacement ECS catch can O-ring
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
06-13-2026
To make your custom install as easy as possible, IE offers stainless steel catch can mounting brackets
Intuitive drain solution for most catch can applications