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I dislike anything taking away from the appearance of the engine.
On my EVO, I used a piece of rubber tube that fit inside the existing breather tube, a dab of silicone and routed to the ground.
On my TC, because there’s no gap between the transmission and the engine to route the hose, I made a “catch can” from a PVC Tee fitting and mounted it to the air cleaner back plate using the abandoned hole… painted it black. It’s hard to see. But, I need to remove the air filter to empty it.