Straight inlet pipe kit for OEM Nissan S14/S15 T28 bottom mount turbo with Z32 MAF. Straight pipe kit's routing is only for use with the MAX High Mount Intercooler Kit. Couplers and tube are 3" to match the diameter of the larger Z32 MAF. Elbow coupler reduces to 2.5" to attach to OEM two bolt compressor inlet. ~ 3 layer reinforced silicone couplers in black ~ 2.5" Aluminum tube ~ Stainless steel hose clamps ~ Matches the Parts Shop MAX High Mount Intercooler (HMIC kit) perfectly! ** Not legal for use on emissions controlled vehicles.