Used Corksport intake with turbo inlet pipe and a custom made aluminum airbox. The 5 layer silicone coupler has a couple nicks in the first layer from rubbing on the ecu. No leaks. Works flawlessly. Airbox kept intake temps within 3-5 degrees of ambient temps. Intake will fit all mazdaspeed 3's. Airbox might only fits 2nd gen (I made for my 2010. but IDK for sure. I went big turbo with a huge intake, so my gain your gain!keep in mind this comes with an awesome one of a kind airbox.Text only please.