lexus-is2

I've got a F-Sport intake tube by itself without the fittings which are the two blue rubber couplers and the metal clamps.Question: Can I use any intake coupling hose from aftermarket suppliers as long as the diameter matches? Does anyone know what the size is? From the pics, it looks like one end is smaller than the other end. And also, the f-sport rubber tubes have ridges unlike the aftermarket ones that are straight couples. Do these ridges help?

MikeFig82

iTrader: (13)

You can get the couplers from HPS intakes online. Expensive, but good quality build.

Coupler to air box P# is HTSC-300-BLK Qty 1

Clamps P# SSTC-79-87 Qty 4

Hump coupler pipe to throttle body P# HTSHC-300-BLK Qty 1

CIGLexus

iTrader: (1)

The "accordian" or "hump" type coupler allows for some engine movement and is suggested to prevent the coupler from coming loose under extreme use.