These 4" intake adapters are a great way to get that aftermarket look and performance of a high flow intake at a fraction of the cost on your VTX1300.  This adapter will mount many 4" universal K&N style washable filters that are found in most auto part stores (example below).  This kit includes one adapter machined from solid 6061 aluminum and needed stainless hardware to mount.  You will also be required to install a barb and small filter on your crank case breather line.  We also suggest a Stage 3 jet kit since jetting with be needed with a high flow intake. **KIT DOES NOT INCLUDE FILTER.**