Nitrous Express Nitrous Oxide Fuel Line Adapter Kit 16185DNitrous Express solves another problem! Installing a nitrous system on a late model EFI vehicle can be a hassle if you don t have one of the new NX high flow Fuel Taps . These 90 degree high flow adaptors make the chore of tapping factory fuel systems safe and easy. No cutting or drilling just a quick, easy install that takes only minutes and each high flow adaptor has dual outlets for multiple uses. Works on 3 8 & 10mm fuel lines 3 8 10MM LATE MODEL