I have the red HPS ones. They definitely needed to be cut at the breathers by like half their length.
I heard Z1 at least revised their own tubes, but are tougher to install. Upside is there are options for Z1's own breather hoses.
On some days I feel like I could've lived with a CAI. Pipe dream would've been a more refined short-ram, or something that would just poke past the engine bay without need for removing the bumper. I've actually been meaning to look into the Stillen G2 a bit more closely as for a short-ram, it looks well designed...though I may be just paying for looks.
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