CNC-laser cut stainless steel large streetport porting template for 13B-6PI 6-port engine, in 2nd gen non-turbo RX-7s. Also works for 1st Gen GSL-SE, provided you do not modify the auxiliary ports. Unlike other templates, the holes are already cut for you. Just spray or brush Dychem or other brand Layout Fluid on the porting surface, then scribe the port outline using the template onto the layout fluid stain.For shipping, please select USPS Priority Flat Rate Box ($8.10). The template is very light, but requires a large box to protect it from shipping damage.