Amazon.com: Hydraulic Exhaust Pipe Expander, 1-5/8" to 4-1/4" size, 10 T Manual Hydraulic Pipe Stretcher, Exhaust Pipe Stretcher Tool with Various Collets and Storage Box : Tools & Home Improvement
IO 12 Expander – 12 Channel with Flying Lead Harness Kit (CAN ID – Box A) Length: 2.5m (8′) – www.ohm-racing.com
IO 12 Expander Box A - CAN Based 12 Channel - BOX Only - Tick Performance, Inc.