Mishimoto 350Z induction hose kit for 2003–2006 Nissan 350Z replaces the stock rubber hose with a 5-ply silicone assembly reinforced by steel rings to prevent collapse. It installs in under 30 minutes, works with the stock intake or Mishimoto intake without a tune, and is claimed to deliver up to 4 whp and 6 wtq gains over the stock rubber hose while providing true bolt-on compatibility and a lifetime warranty.
Mishimoto 03-06 Nissan 350Z Black Air Intake Hose Kit