We use 25x12x3.5in vibrant bar and plate intercooler cores, and out custom end tanks that fit with oem factor bumper shocks. Our intercooler piping is 2.5in on the hot side, and 3.0in on the cold side. We use tial blow off valve flanges. These are made to suit after market ECUs so they have a IAT bung. If you want a maf bung, please email us at firstname.lastname@example.org to specify.