Alaria Tech - Weld-in Trans Tunnel for S14 240sxIntroducing the Alaria Tech weld-in trans tunnel for S14 chassis. These are designed to replace the OEM tunnel to allow for more space for larger transmissions, plumbing and servicing. These require you to use the new part as a template to cut out the OEM tunnel and then weld this in yourself. The shifter hole and surround will be left up to you based on size and location. We normally build a separate removable piece that holds a shift boot. 3D scanned and CAD Designed for exceptional fit