Crankcase air breather for the Turbo Honda. Required when removing the stock airbox to install an aftermarket air filter. Washable element also has a mounting tab to easily zip-tie it away. From Uni Filter, "The best filters on earth!" We recommend re-using the stock clamp

This inserts in the grey hose to replace the stock airbox/intake tube.

**This filter is required when installing the MACSBOOST INTERCOOLER!
**This filter is included in the MACSBOOST Stage II kit