In order to use this harness you must be using an 02/04 rsx or ep3 engine harness. Please choose option below on what ecu you're using.
This comes with a free start up basemap. Once you order we will then send you information to fill out. Please allow us 24 to 48 hours to send you this email.
The add on opition will come with an extra plug to directly plug in a Haltech WB1 ( wideband ) which that can be purchased here
https://www.rcautoworks.com/products/wb1-bosch-single-channel-can-o2-wideband-controller-kit?srsltid=AfmBOoqitqpWXNYUhvXH1sbAsc0Vbwbul77wJ7wkdlHPdHdV71GUcblk