It's the 45* coupler they send. You need a coupler with a tight radiused 45* and a short leg going to the inlet pipe and a longer leg going to the MAF housing or stock air box what ever you run. I was sent a few different 45* couplers from ATP and trimmed one to fit. I am giving them the measurements so they will include a 45* coupler with this kit to work with the stock air box. The bottom BPV hose fit great for me. I ended up with 10"-11" of the 1" silicone tube and it fit right over the exhaust port of the BPV and right to the 90* plastice nipple they provide. I even used the stock spring clamps there because they fit real tight. On the top I used 8" of silicone tube and a 3/4" rubber spacer to fit in the 1" silicone tube so the stock snap fitting off the stock accordion inlet pipe would slide in snug. It all snaped together OEM like after that. Loks nice with the black hose I opted for. I'll have PICs later today I promise!!![]()
Good work!
I had to do similar work to get the cobb to fit..